14 best carbon monoxide alarms

Product description

Kidde 21025778 Carbon Monoxide Alarm Battery. Made from quality materials for durability and performance. Designed for quick and simple installation.

• 2 AA battery backup
• Low battery hushes
• Event memory
• Loud 85 decibel alarm
• Low battery signal

User questions & answers

Question:	Would this device work in a 6' x 6' hunting blind with a Mr. Heater heating unit
Answer:	Not for sure but wife read that rhey can fluxiate between 0-3 with no problems mine does it also
Question:	your cob b lcm coc allarm is 15$ 6 is 99$ . why does quantity coct more
Answer:	When I used the digital gas detector to test it worked fine.
Question:	How far apart are the mounting holes
Answer:	There are two possible causes. The unit was not zeroed out upon activation or you do have a very low level of gas in your home atmosphere, with the first being my best guess. Unplug and move and re-check the reading. If this does not resolve the issue send it back for a new one. Mine has worked well for 6 months so far.
Question:	Why is the 2 pack more than 2 times the price of the single detector
Answer:	I returned these detectors. They don't have any information printed on the case - no manufacturer name, no instructions, no UL approved indicator, etc. These were made in China which is usually okay but I am not comfortable in relying on them to protect my family. I will be researching further and looking for better detectors that can be trusted.

Product features

Battery Operated Carbon Monoxide Alarm

The Kidde KN-COB-B-LPM Battery-Operated Carbon Monoxide Alarm is intended for continuous monitoring of carbon monoxide levels. The alarm features a piezoelectric horn that is rated at 85 dB at 10 ft. The alarm is battery operated for uninterrupted monitoring, even during power outages, and runs on 2 AA batteries, which are included.

Battery-operated carbon monoxide detector; no hardwiring required

Alarm will sound when dangerous levels of CO are detected

Test/reset button tests the unit for proper operation and resets the alarm

Product description

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From the Manufacturer

Carbon Monoxide Alarm AC Powered with Battery Back up; Tamper resistant feature; Led operation; Test reset button; Alerts user to replace after 10 years of operation; Low battery hush; Event memory; UL listed.

• Tamper resist feature – Can be activated to cause unit to go into alarm if it has been unplugged or has come loose from the outlet
• 2 LED’s: Red - Illuminates when in alarm mode. Green – AC power is present, normal operation
• Test/reset button: Tests CO alarm circuit operation and allows you to immediately silence the alarm
• End of life alarm: Alerts user to replace CO alarm after 10-years of operation
• Provides peace of mind against the silent killer; Temperature range: 40˚F (4.4˚C) to 100˚F (37.8˚C)

User questions & answers

Question:	When I unplug this device the green light goes off even though the batteries are installed as a backup. Is that normal
Answer:	It's about 5 1/2 in from hinge to hinge ~ 14.5 cm. It does provide full cover. The foam is flush with my face without being uncomfortable. It however is not waterproof. The foam has air slots so it can breathe. I've used these for Chemistry lab as well as wood working, and they work great.
Question:	When I try put battery in or plug it in, the alarm goes off! Does that alarm sound stop? It's brand new
Answer:	They stay on surprisingly well! I use them for my dog grooming business. They are light weight so that works good for me. They might be a bit too light for sports. If you got hit with a ball they would probably crack and potentially cut you.
Question:	How do you turn on the "low battery hush
Answer:	Yes, it should do a good job to keep out drywall dust. However, I ended up removing it due to condensation buildup while using it
Question:	What is the location of the wall plug on the device? Will it cover the entire outlet
Answer:	yes they can fit over Rx glasses but I don't recommend because they became blurring and you will not see very well

Product features

Quality Protection

The Kidde KN-COB-DP2 plug-in carbon monoxide alarm with battery backup provides you and your family with a warning signal to protect against dangerous levels of carbon monoxide in your home. The battery backup feature provides continuous monitoring of CO levels, even during power outages when AC-only units are not providing protection. The KN-COB-DP2 alarm has a 10-year product life, providing 40% longer protection than other CO alarms.

Protection You Can Trust

Nothing is more important than making sure your family is safe and prepared for anything, and with this plug-in carbon monoxide detector from Kidde, you will always be afforded peace of mind! This CO alarm includes a battery backup to make sure it is monitoring your home at all times and uses high-tech electrochemical sensors to provide accurate carbon monoxide readings that will always keep you protected.

Plug-in to Peace of Mind

To prevent nuisance alarms from everyday activities, CO detectors are time-weighted alarms that are based on time and the concentration of CO levels. This unit will only sound an alarm if low levels of CO have been detected over a long period of time, but high or unhealthy levels of CO will immediately trigger an alarm.

Product description

X-Sense smoke and carbon monoxide alarm with LCD indicator, 10-year battery life, model SC07, pack of 3

• 2-IN-1 PROTECTION: Equipped with both photoelectric and electrochemical CO sensors that work independently of each other; instantly notifies you when dangerous smoke or CO concentration is detected while minimizing false alarms; provides the ultimate protection from 2 deadly threats, all contained in 1 unit
• BUILT-IN 10-YEAR BATTERY: Provides 10 years of continuous power with a built-in lithium battery, saving on energy while remaining eco-friendly; saves you from constantly having to change batteries or wonder if your alarm is still functioning
• ACCURATE, RELIABLE & HIGHLY SENSITIVE: The X-Sense combination smoke and co alarm has been redesigned from the inside out; it will ensure that smoke triggers the alarm instead of interference by taking 3 separate smoke samples from the surrounding air; a full 360 ° ring of air intakes ensures complete detection with no blind spots
• LED INDICATOR: Clearly informs you of the working status of the alarm with its 3-color flashing LED indicator (green LED indicates normal operation, red LED indicates the alarm status, and yellow LED indicates a fault), ensuring the safety and security of your home 24/7
• LARGE LCD DISPLAY: Clearly displays battery level and the real-time CO levels in PPM (parts per million) taken from the surrounding air, with an updated measurement taken every 10 seconds

User questions & answers

Question:	Does this system talk or speak a warning and if not is there one that does
Answer:	No these do not, but if you look in the search for talking or recorded message it should bring it up?
Question:	Where is this device manufactured
Answer:	In a smoke detector Factory Most likely ; - )
Question:	Do these units link with each other? If one goes off in the basement will all the others go off in the house, like they would if hardwired
Answer:	No, they are not and can not be linked.
Question:	Does the LCD screen always stay illuminated, day or night
Answer:	No. You activate the lcd light by pushing the button. Otherwise it's off.

Product features

10-Year Battery Life

This 10-year battery-operated combination alarm provides constant monitoring, even if there’s a power failure. Therefore, your home and family will be protected 24/7 so everyone can sleep safe and sound at night.

Practical LCD Display

The built-in display will indicate real-time carbon monoxide (CO) concentrations in the surrounding air, as well as the remaining battery life and working status of the alarm.

If a CO concentration of 30-999 ppm exists for a certain time period, the display will be backlit in blue, and the LED indicator will flash red 4 times every 5.8 seconds.

LED Indicator

This alarm uses a 3-color LED indicator (red, green, yellow) combined with the alarm sound, making it easy for you to check the alarm status.

TEST/SILENCE Button

The TEST/SILENCE button allows you to test the alarm to ensure it is functioning properly. When false alarms occur, the unit can be silenced with a simple push. Make sure to test your alarm every week.

Technical Specifications

Power Supply: 10-year sealed lithium battery

Smoke Sensor Type: Photoelectric

CO Sensor Type: Electrochemical

Product Life: About 10 years

Alarm Noise Level: 85 dB at 9.84 ft (3 m)

Product description

Plug-In carbon monoxide alarm with battery backup.

Protect your family from the dangers of carbon monoxide (CO) exposure with the Kidde KN-COPP-3 Nighthawk Plug-In Carbon Monoxide Alarm with Battery Backup and Digital Display. The Nighthawk is an easy-to-install unit that provides reliable protection against the dangers of CO. It features a digital display that shows CO levels in parts per million allowing you to see if, how, and when levels change.

Plug-in unit with battery backup and digital display that shows CO level Level button displays the peak CO level recorded by the alarm since it was last reset Loud alarm pattern sounds when unit detects elevated CO levels Direct-plug, 6-foot power cord, and table top mounting options. Five-year limited warranty

This discreet alarm is designed to fit into any standard A/C outlet in your house. View larger.

The easy-read digital display updates every 15 seconds to indicate any abrupt changes or alarming trends in CO levels. View larger.

Advanced Technology in an Easy-to-Install, Plug-In Design

Designed for home use, the Kidde KN-COPP-3 Nighthawk is a UL-listed, A/C-powered, plug-in CO alarm that utilizes sophisticated electronic components and sensor technology to protect you and your family from the dangers of CO. It plugs directly into a standard A/C outlet and includes a 9-volt battery backup that provides continuous monitoring of CO levels--even during power outages.

About Carbon Monoxide: The Silent Killer

The leading cause of accidental poisoning deaths in North America, carbon monoxide (CO) is often referred to as the silent killer because it's odorless, tasteless, and invisible. Carbon monoxide poisoning can come about via a number of sources, including everyday items and appliances in your home or office. And because symptoms of CO poisoning mimic the flu or other common illnesses it can often go undiagnosed.

Audible Alarm Pattern Alerts you to Elevated CO Levels

When placed on every level of your home, alarms like the KN-COPP-3 Nighthawk can help protect everyone in the house from CO exposure by giving you an unmistakable signal when levels have reached an unhealthy point. If unhealthy levels are detected, the alarm will emit four quick audible beats every five seconds until either levels decrease or the reset button is pressed.

Easy-to-Read Digital Display Shows CO Levels

The KN-COPP-3 Nighthawk is unique among traditional CO alarms because of its digital display. This display clearly shows levels of CO that the unit has detected and stored-- from 30 to 999 ppm--and it updates every 15 seconds to indicate any abrupt changes or alarming trends. The display also shows the peak CO level recorded by the alarm since it was last reset or unplugged.

LED Shows Sensor Status

With the KN-COPP-3 Nighthawk, you never have to wonder if the sensor is functioning properly. A blinking dot in the lower right-hand corner of the display denotes normal operation, so you can trust that it's working. In addition, you can test alarm function by pressing the test/reset button at any time to verify that the horn and electric circuitry are operating properly.

Convenient Mounting Options

The KN-COPP-3 Nighthawk has a low-profile design that makes it suitable for any room in your home. The detector can be plugged into any standard A/C outlet; it's plug can be snapped into the back of the unit and can be rotated so the alarm remains vertical, independent of whether the electrical socket is mounted vertically or horizontally. In addition, the alarm comes with a 6-foot extension cord, so the unit can be plugged into the wall outlet and then placed on a table or shelf. For the most thorough protection, place an alarm on every level of your home.

The UL-listed Kidde KN-COPP-3 Nighthawk has a seven-year life and is backed by a five-year limited warranty.

About Kidde: A UTC Fire and Security Brand

Renowned for global leadership in fire detection and suppression, Kidde provides solutions ranging from portable fire extinguishers to advanced industrial controls such as flame detection and explosion suppression systems. Kidde is a UTC Fire and Security brand, with a history that's rich with innovations, from the patent of the Chubb Detector Lock in 1818 to the development of the world's first wireless networked smoke detectors in 2004.

What's in the Box

Kidde KN-COPP-3 Nighthawk CO Alarm, 9-volt battery, mounting hardware, and installation guide.

Keep your family safe by placing alarms and extinguishers in each area of the house, and by having a fire escape plan. Click here for a detailed image.

From the Manufacturer

The leading cause of accidental poisoning deaths in North America, Carbon Monoxide is odorless, tasteless and invisible, it's a silent killer. Kidde CO alarms include the most accurate sensing technology available, the patented Nighthawk electrochemical sensor. This alarm can be mounted three ways: plug directly into AC receptacle, mount on tabletop using 8 foot power cord, or wall-mount. The digital readout continuously displays carbon monoxide levels from 30-999 parts per million. This unit has a loud, 85-decibel alarm that sounds when CO reaches dangerous levels. One of the features of this product is peak level memory, which means this unit will recall highest level of CO present since previous reset. Install at least one CO alarm on every floor and in sleeping areas. Make sure CO alarms are at least 15 feet away from cooking or heating appliances to prevent false alarms. Replace CO alarms every 5 to 7 years to benefit from the latest technology upgrades.

• Peak level button – Displays the peak CO level recorded by the alarm since it was last reset or unplugged
• Test button functions – Tests the unit for proper operation and resets the carbon monoxide alarm
• LED operation – Blinking dot in lower right corner of display denotes normal operation
• Ten years after the initial power up, this alarm will “beep” two times every 30 seconds to indicate that it is time to replace the alarm.
• Note: This CO alarm is not battery operated. However, these alarms are equipped with 9 volt battery backup – the 9 volt battery is to supply short term back-up during a power outage.
• Power source: 120VAC. Temperature range-40˚F (4.4˚C) to 100˚F (37.8˚C). Humidity range-5%-95% relative humidity (RH)

Product features

Easy to Read Display

This plug-in CO alarm is designed with a clear, visible readout that will accurately record the levels of carbon monoxide present so that you can quickly know if an area of your home is at risk. It measures CO levels between 30 and 999PPM, and the display will also indicate if the battery needs to be replaced.

Unbeatable Protection

Always protect your family and home by making sure you are prepared for any emergency or hazard with the Kidde plug-in carbon monoxide detector. This CO meter uses an electrochemical sensor and features a clear digital display screen to monitor and record any CO levels in any room of your house. This sensitive and clear detector will leave you confident that you are protected against carbon monoxide.

Peak Level Memory Feature

Displays the peak CO level recorded by the alarm since it was last reset or unplugged

Product description

The Kidde KN-COPP-B-LPM battery operated CO alarm provides continuous monitoring of CO levels, even during power outages when many CO incidents occur. The digital display feature allows for easy viewing of carbon monoxide levels from 30-999 PPM (parts per million). The KN-COPP-B-LPM will also detect and istore concentration CO levels as low as 11 and up to 999 PPM with its peak level memory display. This alarm, includes a slide-out battery door that gives immediate access to the batteries and a safety feature that makes it difficult to close the cover without the batteries being installed. It has a 10-year life and a 10-year limited warranty.

Kidde’s KN-COPP-LPM battery-operated carbon monoxide alarm with digital display helps to provide your home with extensive protection against the dangerous threat posed by the odorless and colorless gas. With an increasing number of state and local governments passing legislation requiring CO detectors in homes, it’s never been a better time to safeguard your family against carbon monoxide exposure.

KN-COPP-LPM Battery-Operated Carbon Monoxide Alarm At a Glance: Digital display allows for easy monitoring of CO levels Battery operation provides best protection during power outages Peak level memory displays the highest CO concentration since last reset Dimensions: 4.5 inches by 2.75 inches by 1.5 inches; weighs .66 pounds with batteries Five-year limited warranty

Kidde's KN-COPP-LPM carbon monoxide detector is a free-standing unit, adding flexibility to placement around your home. View larger

Features

The KN-COPP-LPM is an essential device to help warn you and your family of dangerous carbon monoxide levels in your home. This alarm measures the exposure to carbon monoxide over time; it is designed to sound at 85 decibels at 10 feet when it detects 70 ppm (parts per million) of CO for 60 to 240 minutes, 150 ppm for 10 to 50 minutes, or 400 ppm for 4 to 15 minutes. The easily visible digital display indicates the level of CO that the unit is sensing, and it updates the status every 15 seconds for timely and accurate readings. Its free-standing design allows for attachment to a wall or placement on a counter or nightstand for convenient and comprehensive protection. The KN-COPP-LPM also includes a slide-out battery door that provides immediate access to the power source as well as a battery safeguard that makes it difficult to close the cover without batteries installed. An LED lighting system on the unit signals power levels and sourcing: the green LED will flash once every 30 seconds to indicate the alarm is operating properly when power is present, and the red LED will pulse to indicate carbon monoxide has been detected until the device is reset or the CO threat is eliminated. This device has an expected 7-year lifespan and comes equipped with a five-year manufacturer’s limited warranty.

What's in the Box

One Kidde KN-COPP-LPM battery-operated carbon monoxide alarm with digital display and three AA batteries.

The KN-COPP-LPM features an easy-to-read digital display in front and an easy-access door to the batteries in back. (Click each to enlarge)

From the Manufacturer

Kidde KN-COPP-B-LPM Battery-Operated Carbon Monoxide Alarm w/ Digital Display - Digital screen with large display is easy to read - Peak-level memory displays the highest CO concentration measured since the last reset - Meets the all UL requirements - Battery operated with three AA batteries included - Backed by a five-year warranty

The new Kidde KN-COPP--LPM carbon monoxide alarm is the only battery-operated alarm that includes a digital display feature. This key feature adds an advanced level of protection that you have come to expect in a Kidde manufactured product. The battery operated CO alarm includes multiple mounting options, allowing installation on a wall or tabletop. This alarm has been carefully designed and tested to detect CO concentration in a residential environment. It provides continuous monitoring of CO levels, even during power outages when many CO incidents occur. The digital display feature allows for easy viewing of carbon monoxide levels from 30-999 PPM (parts per million). The KN-COPP-LPM will also detect and store concentration CO levels as low as 11 and up to 999 PPM with its peak level memory display. This alarm includes a snap-on cover that gives immediate access to the batteries and a safety feature that makes it difficult to close the cover without the batteries being installed. Updates digital reading every 15 seconds, allowing you to see if levels change. The peak level memory displays the highest CO concentration measured since the last reset. The test/reset button tests CO alarm circuit operation and allows you to immediately silence the alarm. A low battery signal alerts users when the batteries need to be replaced. Includes informative LEDs: green LED for normal operation, red LED for alarm. The alarm alerts user to replace CO alarm after 7 years of operation.

Sensor: Electrochemical.

• Digital Display - Displays the level of carbon monoxide the unit is sensing. Shows CO level in PPM (parts per million). Updates digital reading every 15 seconds, allowing you to see if levels change. Peak Level Memory displays the highest CO concentration measured since the last reset
• Battery Operated - Provides the best protection during power outages. Battery safeguard makes it difficult to close the cover without batteries in the unit. Low battery signal alerts user when the batteries need to be replaced. Slide-out battery door cover gives immediate access to batteries
• Test/Reset Button - Tests unit’s electronic circuitry & horn and resets the unit during alarm. Tests CO alarm circuit operation and allows you to immediately silence the alarm
• LED's - Green LED for normal operation, Red LED for alarm. Temperature range 40˚F (4.4˚C) to 100˚F (37.8˚C). Sensor: Electrochemical
• Provides peace of mind against the silent killer and a digital display

User questions & answers

Question:	is it a plug in
Answer:	Light turns off on mine as well once i unplug but i just plugged it back in a tested it and it started beeping and went back to red
Question:	Can the alarm be run with rechargeable NiMH batteries
Answer:	The alarm never went off in ours and the battery was charged when we got it. Its a 10 yr battery so I think your product is defective.
Question:	how is it installed
Answer:	Not sure, but my suggestion would be to replace the battery. What good is a battery backup if your battery is low?
Question:	How is the unit mounted? Should it be near the ceiling or near the floor
Answer:	The plug also can be removed from the unit in case you want to mount the device on the wall or stand it on a table or night stand.

Product features

Digital Display

Displays the level of carbon monoxide the unit is sensing. The unit updates this reading every 15 seconds

Unmatched Protection

Be prepared for a hazard or emergency in your home, and ensure the safety of your family and loved ones with the Kidde carbon monoxide alarm. This CO detector uses advanced electrochemical sensors and features a digital display screen to accurately and quickly inform you of any CO levels in your home.

Protection Everywhere

This is a battery-operated, free-standing carbon monoxide alarm that can be placed on a counter, nightstand or tabletop, or it can be taken with while traveling or camping so that you can always be sure you are in a safe environment. Additionally, if it is your preference, it includes the hardware necessary for installation on walls.

Product description

The First Alert CO605 plug in carbon monoxide alarm with battery backup uses an electrochemical carbon monoxide sensor the most accurate technology available. The alarm easily plugs into any standard outlet with no additional mounting. Battery backup ensures alarm Works even during power outages. Mute button silences any nuisance alarms. Single button also tests alarm functions. Carbon monoxide alarm utilizes electrochemical sensor for increased accuracy. 7 year limited. Co alarm meets UL standards.

• Keep your family safe with this easy to use plug in carbon monoxide alarm; It works with any standard outlet and also has a battery backup for continuous monitoring of Carbon Monoxide levels, even if there's a power failure
• Features an advanced electrochemical carbon monoxide sensor that accurately detects carbon monoxide levels, no matter where the detector is placed in the room
• Simple to use, with a single test/silence button; A loud 85 decibel alarm sounds when carbon monoxide levels reach dangerous levels. Low battery signal mute, quiets low battery signal for up to 8 hours
• To ensure complete protection make sure to place one on each level of your home and in each bedroom
• 7 year limited warranty; Equipped with end of life signal chirp, so you know when it’s time to replace the unit for safety
• All first alert CO alarms are rigorously tested to meet UL standards. Item length is 3.4 inches, item width is 1.38 inches and item height is 5 inches
• First Alert has been the most trusted brand in home safety since launching the first residential smoke alarm in 1958 (Based on a First Alert Brand Trust Survey in February 2018)

User questions & answers

Question:	Does the monitor plug directly into the wall socket or is there an electric cord
Answer:	There is a tension knob.
Question:	Will the unit work without a bettery in it
Answer:	The longest disassembled piece is 50 inches, no problem storing in 6 foot compartment at least for length.
Question:	why does mine chirp intertmittently
Answer:	No it dont , I did look at it and no it dont , but you can move the power head into different angles to cut with
Question:	I love the idea of plug-in without messing with batteries at all, but plug-is are only a foot of the floor. gas is lighter than air. would we be dead by the time the house is so filled it reaches clear down to the outlet? now leaning toward battery unit so I can place it high. opinions
Answer:	No it does not swivel in the middle only on the handle side

• Combo smoke detector/carbon monoxide alarm detects two threats
• Electrochemical CO sensor alerts you to carbon monoxide danger
• Photoelectric sensor detects smoke while minimizing false alarms
• Battery-operated unit installs quickly and easily without an electrician，A single button tests the unit or silences the alarm. Low battery signal mute, quiets low battery signal for up to 8 hours
• 5 YEARS WARRANTY

User questions & answers

Question:	I cannot get power light to illuminate. Had smoke fill kitchen from pellet stove with no alarm from either device. Any tips
Answer:	Yes. VdS, TÜV Rheinland, BSI, ETL, and CCCF. UL 2034 (US) and EN 50291 (EU)
Question:	How does it show real time carbon monoxide levels and what not if the lcd screen does not stay on? Maybe I got a defective one
Answer:	Stairwell
Question:	Do theses need to be replaced in 5 years? it says 5 year warrnty some sy 7 some say 10yrs. what is the reccomendation on these
Answer:	Not thus far.
Question:	I cannot get power light to illuminate. Had smoke fill kitchen from pellet stove with no alarm from either device. Any tips
Answer:	Hello Bob, it's the Alorva team here. We do not provide moisture reduction packets, however, if you feel you need that added protection from moisture, feel free to do so. Some customers are constantly adding and taking out documents from their bags all the time and this airflow that is introduced is sufficient to keep moisture to non-existent levels. Thanks and have a Merry Xmas, The Alorva team.

Product features

Alerts You to Danger

When a threat is detected, the smoke and carbon monoxide alarm sounds a loud 85-decibel siren that is designed to wake even the soundest of sleepers.

A single button allows you to silence alarms and test if the device is working.

Battery Operated for Convenience

The battery-operated dual CO smoke alarm installs in minutes, without requiring an electrician. The unit requires two 1.5V AA battery and features a chirp and indicator light to let you know when they need replacing. The alarm mounts easily to a ceiling or wall and comes with pins to secure alarm to the base to prevent tampering.

Sleek, Low-Profile Design

Half as thick as a standard alarm, the Photoelectric Smoke and Carbon Monoxide Alarm packs premium detection features into a sleek, compact unit. The ultra-thin design features a white finish that blends seamlessly with most home decor.

Product description

The First Alert SCO5CN Combination Smoke and Carbon Monoxide Alarm features dual sensors to detect both smoke and carbon monoxide in a single device. A photoelectric sensor detects the smoke most often produced by smoldering fires, and minimizes false alarms from cooking smoke or shower steam. Additionally, the advanced electrochemical CO sensor detects carbon monoxide leaks from multiple sources, such as faulty fuel burning appliances, blocked chimneys, and generators running inside or too close to homes. A loud, 85 decibel siren alerts you to the threat; unique alarm sounds and indicator lights on its face distinguish a smoke warning from a carbon monoxide warning. This carbon monoxide and smoke detector is battery operated, so you don't need an electrician for installation. Requiring just two AA batteries and featuring an easy access battery compartment for quick changes, this smoke and carbon monoxide detector has a single button that allows you to silence a false alarm or test the unit.

Carbon monoxide (CO) is the leading cause of accidental poisoning deaths in America, yet many people don't know they are suffering from CO poisoning until its too late. Since symptoms of CO poisoning are like the flu, you might not even know you're in danger at first. That's why a carbon monoxide alarm is an excellent way to protect your family. It can detect the CO you can't see, smell or taste in the air.

The First Alert SCO5CN carbon monoxide and smoke alarm uses an electrochemical carbon monoxide sensor-the most accurate technology available. The alarm uses photoelectric smoke sensing technology which is environmentally friendlier and which reduces nuisance alarms, making it ideal for cooking areas. It is also great for sensing slow smoldering fires quickly. The permanent sensors last the lifetime of the alarm. The test/silence button both silences a non-threatening alarm or low battery warning and allows you to test the unit's functionality. A low battery signal alerts you to replace the battery and end-of-life alarm of three chirps alerts you to replace the unit. Two AA batteries are included. 5-year limited warranty. UL listed. Not available for sale in Massachusetts.--Bree Norlander

What's in the Box

One combination carbon monoxide and smoke alarm, two AA batteries, and user's manual. This does not contain voice feature.

• Keep your family safe with this battery operated smoke and carbon monoxide alarm; Battery powered alarms provide continuous monitoring of CO levels, even if there's a power failure
• Features an electrochemical carbon monoxide sensing technology as well as a photoelectric sensor that detects the larger particles of a smoldering fire
• Indicator lights on the face of the unit display the presence of smoke or carbon monoxide, while an 85 decibel siren provides a clear, loud warning upon detection
• Battery operated unit installs quickly and easily without an electrician. Low battery signal mute, quiets low battery signal for up to 8 hours
• Simple to use, with a single test/silence button; EZ access battery drawer allows you to change battery without removing alarm from ceiling
• 7 year limited warranty; Equipped with end of life signal chirp, so you know when it’s time to replace the unit for safety; All first alert alarms are rigorously tested to meet UL standards
• It can ship within the US except New York
• First Alert has been the most trusted brand in home safety since launching the first residential smoke alarm in 1958 (Based on a First Alert Brand Trust Survey in February 2018)

User questions & answers

Question:	pack is $30, 2 pack is $90. Why is a two pack so much? I thought the idea was to incentivize more product at a lower cost. This is halarious
Answer:	I no longer live in the apartment where I replaced the old smoke alarm, but you will love this one. It's so nice to flip the battery holder down and not have to remove the battery from the unit.
Question:	Advice on false alarms? Goes off every week or so. It's in our kitchen/living room, but goes off even when we are not cooking. Goes 1 min then stops
Answer:	No
Question:	I have these througout my house and rental unit. Installed them about 7 years ago and many malfunctioning. Any durability mprovments since 7 yrs ago
Answer:	The instructions that come with the unit duplicate what I have read from several Fire Department sources: you can place your unit on the ceiling, but AT LEAST 4 inches (10cm) from the wall. If you want to mount it on the wall, mount it MORE THAN 4 inches (10cm) BELOW the ceiling, but NO LOWER than12 inches (30cm) below the ceiling. It has to be high enough up the wall to "smell" the smoke, but that 4 x 4 inch (10cm x 10cm) area where the wall meets the ceiling can sometimes harbor a "dead zone" of still air where the smoke would NOT reach the detector quickly enough during a fire to warn you in time. Thus, do NOT mount your detectors too close to where the wall meets the ceiling.
Question:	How long do batteries last
Answer:	Ionization type. I actually looked at at manual to be certain.

Product description

Monitor your house for dangerous levels of methane, propane, and carbon monoxide with the First Alert GCO1CN Combination Explosive Gas and Carbon Monoxide Alarm with Backlit Digital Display. This explosive gas and CO alarm detects the presence of combustible gases propane and methane and alerts you with a loud 85-decibel alarm. It also comes equipped with an electrochemical CO sensor that accurately detects carbon monoxide leaks from faulty fuel-burning appliances, blocked chimneys, and a variety of other sources. Designed for easy setup, this explosive gas and CO detector plugs into any AC outlet with no additional mounting hardware needed. The alarm can be configured to work with almost any standard household remote control (not included), so you can remotely silence nuisance alarms with the push of a button. The backlit digital display shows current and peak levels, allowing you to easily review the alarm's readings. For added safety, a backup battery helps keep the alarm functioning even in the event of a power outage. And thanks to a convenient test/silence button, you can easily check whether your alarm is functioning properly and mute false alarms.

Carbon monoxide (CO) is the leading cause of accidental poisoning deaths in America, yet many people don't know they are suffering from CO poisoning until its too late. Since symptoms of CO poisoning are like the flu, you might not even know you're in danger at first. That's why a carbon monoxide alarm is an excellent way to protect your family. It can detect the CO you can't see, smell or taste in the air.

The First Alert GCO1CN combination explosive gas and carbon monoxide alarm uses an electrochemical carbon monoxide sensor-the most accurate technology available. It also detects natural gas, methane gas, and propane gas. Installation is as simple as plugging it in to any wall outlet or mounting it above an outlet and plugging in the higher line cord. Its easy-to-read large digital display gives you a clear readout of current hazard and levels. A peak level button alerts you to the highest level of explosive gas or carbon monoxide detected. The alarm includes a battery back-up giving you peace of mind in a power outage. The test/silence button both silences a non-threatening alarm or low battery warning and allows you to test the unit's functionality. The unit monitors and alarms if carbon monoxide or explosive gas levels persist sounding a loud 85-decibel horn. A low battery signal alerts you to replace the 9-volt battery (included). UL listed. --Bree Norlander

What's in the Box

One combination carbon monoxide and explosive gas alarm, one 9-volt battery, and user's manual

• Versatile CO alarm senses high levels of propane, natural/methane gas, and carbon monoxide
• Crisp backlit digital display allows you to view current and peak levels
• Can be remotely muted using almost any household remote control
• Plugs into any AC outlet for easy setup; backup battery powers unit in case of power outage
• Loud 85-decibel alarm can be heard easily
• Plug-in combination carbon monoxide and explosive gas alarm with battery back-up
• 3-way protection against natural, methane, and propane gases and carbon monoxide

User questions & answers

Question:	We have an enclosed garage that is more of a "play room." Can I install this unit in a garage? The Kiddie Alarms state you can't use them in a garag
Answer:	I cannot plug mine in anymore it immediately alerts “GAS”. Very disappointing. It’s only a couple years old. I would expect for his price they last longer and/or have a better return policy.
Question:	Has anyone had false alarms? My alarm which is s couple. Of years. Old went off saying GAS but there was no trace of gas in the house
Answer:	I had a major lp gas leak in the gas line inside my walls and this unit never registered anything. Don't waste your money. Fortunately, I believed what I thought I smelled and called the gas company.
Question:	Does this unit works for LP propane gas leak
Answer:	No. But the company denies there is a problem. If your unit is within the warranty period, they will replace it with another one that drains the battery. Then they deny there is a problem.
Question:	Has anyone found out why this detector drains the battery within hours even if it's a brand new battery and it's plugged into the wall
Answer:	yes

Product features

First Alert GCO1CN Combination Explosive Gas and Carbon Monoxide Alarm

The First Alert GCO1CN Combination Explosive Gas and Carbon Monoxide Alarm with Backlit Digital Display offers reliable detection of three common household threats: methane, propane, and carbon monoxide. Built for easy operation, this detector plugs easily into any AC outlet with no additional mounting hardware needed. A backlit display allows you to review the CO detector's readings, while a single button lets you test and mute the alarm with ease. The alarm can also be configured to work with almost any standard household remote control (not included), so you can remotely silence nuisance alarms with the push of a button.

What's in the Box:

About First Alert

For nearly 60 years, First Alert has been a leading innovator in the home safety industry, helping its customers protect what matters most. From smoke detectors and carbon monoxide alarms to security cameras and safes, the company manufactures reliable, technologically advanced products that offer a sense of preparedness and peace of mind. First Alert also takes pride in community outreach and has maintained a longstanding commitment to fire service support and safety awareness.

Product description

The Kidde KN-COEG-3 AC powered, plug-in CO and explosive gas alarm protect you and your family from two deadly threats. The KN-COEG-3 includes 9V battery backup that provides protection during a power outage, when AC-only units cannot provide protection. By pressing the Peak Level Button you can see the peak CO level recorded by the alarm since it was last reset or unplugged. The continuous digital display shows you the level of carbon monoxide (if any) the unit is sensing as well as if gas is present. The gas sensor is a metal oxide sensor designed to detect natural gas (methane) or propane. Temperature range- 40 degree Fahrenheit to 100 degree Fahrenheit.

Protect your family from the dangers of carbon monoxide (CO), methane, and propane exposure with the Kidde KN-COEG-3 Nighthawk Plug-In Carbon Monoxide and Explosive Gas Alarm. The Nighthawk is an easy-to-install unit that provides reliable protection against the dangers of CO and explosive gas. The digital display shows if gas is present indicates CO levels in parts per million, allowing you to see if, how, and when levels change.

Advanced Technology in an Easy-to-Install, Plug-In Design

Designed for home use, the Kidde KN-COEG-3 Nighthawk is a UL-listed, A/C-powered, plug-in alarm that utilizes sophisticated electronic components and sensor technology to protect you and your family from the dangers of CO, methane, and propane exposure. It plugs directly into a standard A/C outlet and includes a 9-volt battery backup that provides continuous monitoring--even during power outages.

The Dangers of Carbon Monoxide, Methane, and Propane Exposure

The leading cause of accidental poisoning deaths in North America, carbon monoxide (CO) is often referred to as the silent killer because it's odorless, tasteless, and invisible. Carbon monoxide poisoning can come about via a number of sources, including everyday items and appliances in your home or office. And because symptoms of CO poisoning mimic the flu or other common illnesses it can often go undiagnosed.

Likewise, methane and propane gases are commonly used in homes for cooking, heating, and water heating. Although it happens rarely, gas leaks can sometimes occur inside the home, increasing the risk of fire or explosion.

Audible Alarm Pattern Alerts you to Elevated CO and Gas Levels

When placed on every level of your home, alarms like the KN-COEG-3 Nighthawk can help protect everyone in the house by giving you an unmistakable signal when gas levels have reached an unhealthy point. If unhealthy levels of CO are detected, the alarm will emit four quick audible beeps every five seconds until either levels decrease or the reset button is pressed. If methane gas or propane gas is detected, the alarm will emit beeps every other second with "GAS" shown in the display.

Easy-to-Read Digital Display Shows CO Levels

The KN-COEG-3 Nighthawk is preferred among traditional CO and explosive gas alarms because of its digital display. This display clearly shows levels of CO that the unit has detected and stored-- from 30 to 999 ppm--and it updates every 15 seconds to indicate any abrupt changes or alarming trends. The display also shows the peak CO level recorded by the alarm since it was last reset or unplugged. The continuous display also shows if gas is present.

LED Shows Sensor Status

With the KN-COEG-3 Nighthawk, you never have to wonder if the sensor is functioning properly. A blinking dot in the lower right-hand corner of the display denotes normal operation, so you can trust that it's working. In addition, you can test alarm function by pressing the test/reset button at any time to verify that the horn and electric circuitry are operating properly.

Convenient Mounting Options

The KN-COEG-3 Nighthawk has a low-profile design that makes it suitable for any room in your home. The detector can be plugged into any standard A/C outlet; it's plug can be snapped into the back of the unit and can be rotated so the alarm remains vertical, independent of whether the electrical socket is mounted vertically or horizontally. In addition, the alarm comes with a 6-foot extension cord, so the unit can be plugged into the wall outlet and then placed on a table or shelf. For the most thorough protection, place an alarm on every level of your home.

The UL-listed Kidde KN-COEG-3 Nighthawk has a seven-year life and is backed by a five-year limited warranty.

About Kidde: A UTC Fire and Security Brand

Renowned for global leadership in fire detection and suppression, Kidde provides solutions ranging from portable fire extinguishers to advanced industrial controls such as flame detection and explosion suppression systems. Kidde is a UTC Fire and Security brand, with a history that's rich with innovations, from the patent of the Chubb Detector Lock in 1818 to the development of the world's first wireless networked smoke detectors in 2004.

What's in the Box

Kidde KN-COEG-3 Nighthawk Carbon Monoxide and Explosive Gas Alarm, 9-volt battery, mounting hardware, and installation guide.

From the Manufacturer

The leading cause of accidental poisoning deaths in North America, Carbon Monoxide is odorless, tasteless and invisible. It is a silent killer. Kidde CO alarms include the most accurate sensing technology available, the patented Nighthawk electrochemical sensor. This unit is an AC powered, plug-in CO and explosive gas alarm that protects you and your family from two deadly threats. The 900-0113 includes 9V battery back up that provides protection during a power outage, when AC only units can not provide protection. By pressing the Peak Level Button you can see the peak CO level recorded by the alarm since it was last reset or unplugged. The continuous digital display shows you the level of carbon monoxide, if any. The unit is sensing as well as if gas is present. The gas sensor is a metal oxide sensor designed to detect natural gas , methane or propane. Install at least one CO alarm on every floor and in sleeping areas. Make sure CO alarms are at least 15 feet away from cooking or heating appliances to prevent false alarms. Replace CO alarms every 5 to 7 years to benefit from the latest technology upgrades.

• Protects you and your family from two deadly threats: Carbon monoxide and explosive gas.
• Sounder alarm – The KN-COEG-3 offers a loud 85-decibel pulsing alarm that will sound to alert you to a potential problem.
• Digital display - Displays the level of carbon monoxide the unit is sensing.
• Peak level memory - Recalls the highest CO concentration detected
• Test/reset button - Tests unit’s electronic circuitry operation and allows you to immediately silence the alarm
• Two alarms in one detects carbon monoxide and explosive gas
• Three convenient mounting options

User questions & answers

Question:	What is the sound level I need one for basement and need to hear on ground floor
Answer:	Dear cutomer, excuse that this prodcut Y301 can't detect hydrogen gas, it's mainly sensitive for methane and propane. thank you very much
Question:	is this an explosive gas and carbon monoxide detector? it only says "carbon monoxide detector" on the actual product
Answer:	Don't worry, it's normal, the large moisture change can affect the sensor performance, and may lead to false alarm, but the data on display only switch to 1,2 or 3, but won;t trigger the voice and light alarm. If the data become 5 or more than 5, voice and light alarm will be triggered. Thank you very much and best regards.
Question:	No manual included. Do I just plug it in and test it? What does it display if gas is detected? Thanks fellow Amazoners
Answer:	HI Niran, it's sensitive to methane and propane. We think it can't used to monitor and detect CO. thank you vey much
Question:	I smell natural gas in my house, and am wondering if that is the same as explosive gas? Will it detect natural gas
Answer:	Dear Karen, temporarily the Y301 doesn't get UL certification, it passed CE, FCC, EMC and RoHs. We are applying US ETL certification which is equivalent to UL certification. Thank you very much and best regards.

Product features

Plug-In Explosive Gas and Carbon Monoxide Detector with Battery Backup

The Kidde KN-COEG-3 AC powered, plug-in CO and explosive gas alarm protects you and your family from 2 deadly threats. The KN-COEG-3 includes 9-Volt battery back up that provides protection during a power outage, when AC-only units can not provide protection. By pressing the Peak Level Button you can see the peak CO level recorded by the alarm since it was last reset or unplugged. The continuous digital display shows you the level of carbon monoxide (if any) the unit is sensing as well as if gas is present. The gas sensor is a metal oxide sensor designed to detect natural gas (methane) or propane.

Carbon monoxide and gas detector plugs directly into wall outlet

Digital display updates CO level in PPM every 15 seconds

Loud 85 dBA pulsing alarm that will sound to alert you to a potential problem

Product description

The First Alert CO615 dual power carbon monoxide plug in alarm alerts you to dangerous carbon monoxide. This carbon monoxide detector operates on a dual power system with battery backup for continuous monitoring, even in the event of a power outage. The backlit digital screen tells you at a glance what the carbon monoxide and power Levels Are. The Co monitor also features a convenient test and silence button and an end of life timer that lets you know when it is time to replace the unit.*ensure the outlet has power.*the battery is for back up only and is not intended to power the alarm for an Extended period of time in the absence of AC. *the alarm will light up the display briefly to indicate the unit is receiving power. *press and hold test button to ensure activation.

Carbon monoxide (CO) is the leading cause of accidental poisoning deaths in America, yet many people don't know they are suffering from CO poisoning until its too late. Since symptoms of CO poisoning are like the flu, you might not even know you're in danger at first. That's why a carbon monoxide alarm is an excellent way to protect your family. It can detect the CO you can't see, smell or taste in the air.

The First Alert CO615 carbon monoxide alarm uses an electrochemical carbon monoxide sensor-the most accurate technology available. Installation is as simple as plugging it in to any wall outlet. Its easy-to-read backlit digital LED display gives you a clear read-out of current CO concentrations in parts per million. The alarm includes a battery back-up giving you peace of mind in a power outage. The test/silence button both silences a non-threatening alarm or low battery warning and allows you to test the unit's functionality. The unit monitors and re-alarms if carbon monoxide levels persist sounding a loud 85-decibel horn. An audible and visual low battery signal alerts you to replace the battery and an indicator alerts you when a battery has been removed. An end-of-life alarm of three chirps alerts you to replace the unit. Two AA batteries are included. 7-year limited warranty. UL listed. --Bree Norlander

What's in the Box

One carbon monoxide alarm, two AA batteries, and user's manual

• Keep your family safe with this digital display, plug in carbon monoxide alarm; It works with any standard outlet and also has a battery backup for continuous monitoring of Carbon Monoxide levels, even if there's a power failure
• Features an advanced electrochemical carbon monoxide sensor; Peak level feature displays the highest concentration of carbon monoxide measured
• A loud 85 decibel alarm sounds when Carbon Monoxide levels reach dangerous levels
• To ensure complete protection make sure to place one on each level of your home and in each bedroom
• 7 year limited warranty; Equipped with end of life signal chirp, so you know when it’s time to replace the unit for safety
• All first alert CO alarms are rigorously tested to meet UL standards
• First Alert has been the most trusted brand in home safety since launching the first residential smoke alarm in 1958 (Based on a First Alert Brand Trust Survey in February 2018)

User questions & answers

Question:	What size home would this cover? Do I need more than one in a 1400 sq. ft. space
Answer:	Straight into the wall... two prongs on the back. The rear picture shown on Amazon shows the prongs, but it's a little confusing because the battery door is shown open - when the door is shut, it's out of the way so the unit can mount directly on an an electoral socket.
Question:	Does this alarm work when using an extension cord or must it be plugged directly into a wall outlet
Answer:	The manual for the CO605 plug-in with battery backup says that if the battery is low or missing, it chirps once a minute. I don't have the item myself, so if somebody can confirm that it does chirp if it is plugged in without a battery, I would appreciate it. As to another answer here, if you are hearing 3 chirps per minute, it means the alarm is not functioning properly; it is not because of a low or missing battery, which is supposed to give off only one chirp per minute.
Question:	can it detect levels of 20,30 or 40 ppm of CO? I know alot can only detect 70 ppm of CO or above...but I'm concerned of a small CO leak of below
Answer:	If it is a 9 volt battery, it may not be seated correctly. See the video on the first alert website, and be prepared to do some hard pushing to get the 9V battery to engage. I had 3 9V units, and 2 of the 3 seemingly required excessive pressure to get the batteries to engage. When I first thought I had the batteries installed by just closing the door, the unit chirped until I got the batteries shoved on hard.
Question:	If I plug this directly into the wall does it over both outlets? I have a nightlight in my hall where I want to place this unit
Answer:	CO is slightly lighter than air, but about the same weight as Nitrogen molecules that is 78% of air. It mixes evenly over time. Researchers tested this by injecting CO into a column of air at different heights. All trials mixed evenly but the injection at the top took a little longer to reach equilibrium. Therefore, it's more important to put the detector near where the likely source might be or near where people might be sleeping than a particular height. https://www.ncbi.nlm.nih.gov/m/pubmed/21536403/

Product description

The First Alert SCO501CN 3ST Combination Smoke and Carbon Monoxide Alarm with Voice Location detects both smoke and carbon monoxide in a single device. The alarm interconnects with up to 18 other First Alert enabled alarms in your home to create a wireless safety network. The photoelectric smoke sensor is designed to reduce false alarms from cooking smoke or shower steam while remaining sensitive to real danger. The advanced electrochemical CO sensor detects carbon monoxide leaks from multiple sources, including faulty fuel burning appliances. A loud 85 decibel siren and a voice alarm with 11 programmable locations indicate where and what the threat is. EZ access battery drawer, no need to remove alarm from ceiling to change battery.

• Battery operated smoke and carbon monoxide alarm can be installed easily
• Connects multiple alarms together for wireless safety network
• Voice alarm gives clear indication of where the problem is located
• Features photoelectric smoke sensor and electrochemical CO sensor
• One button silences a false alarm and tests the unit. Loud 85 decibel alarm
• NOTE: Kindly refer to the user manual provided as a PDF manual in the product description section
• First Alert has been the most trusted brand in home safety since launching the first residential smoke alarm in 1958 (Based on a First Alert Brand Trust Survey in February 2018)

User questions & answers

Question:	are these z-wave controlled
Answer:	You can order parts from the owners manual
Question:	Will the combo model link with the smoke only model
Answer:	Send it back, I did. Had the same problem. Amazon took it back with no hassle. And it runs out of gas in fifteen minutes. Useless.
Question:	What is the MAX allowed detectors to link together
Answer:	There is a trigger-style throttle that regulates the engine rpm's, which determines the blower output. However, I find that the blower is weak enough and engine temperamental enough to keep the throttle full power for best performance.
Question:	For the smoke alarm side of the device - does it have dual smoke sensing? i.e.electrochemical and photoelectric technologies
Answer:	The noise level depends on the leaf blowing power you are using, which of course you can control. Even at full throttle, this leaf blower is not all that loud.

• ACCURATE & RESPONSIVE: Built with an advanced electrochemical sensor and intelligent chipset, the CD07 CO detector quickly and accurately detects dangerous carbon monoxide (CO) leaks in the surrounding air; designed to give you the earliest possible warning of CO threat with a loud 85 dB alarm and a rapid flashing LED indicator
• 10-YEAR BATTERY & PREMIUM MATERIAL: Comes with a 10-year sealed lithium battery for uninterrupted operation; housed in a frame made from premium PC plastic material that is both fire-retardant and highly durable; provides the ultimate protection for you and your family’s safety
• LARGE LCD DISPLAY: Clearly displays the real-time CO levels in PPM (parts per million) taken from the surrounding air, with an updated measurement taken every 10 seconds; comes equipped with a peak level memory, showing you the highest CO concentration measured since the last reset
• EASY INSTALLATION: Attach the mounting bracket onto the surface of a wall or ceiling with the provided screws and mount the alarm into the bracket by pushing them together and twisting the unit clockwise, automatically activating the unit
• WORRY-FREE AFTER-SALES SERVICE: We provide a 60-day money-back guarantee and 5-year warranty for all X-Sense carbon monoxide detectors and smoke alarms; if you have any questions, please feel free to contact us, and we will get back to you within 24 hours

User questions & answers

Question:	Does this device work with Nest products and where ids it made
Answer:	This unit does not depend on the internet to work. It is portable. However, it has internet connection ports so it can use every feature the net can offer. I am very pleased with it's operation and quality.
Question:	Can this be mounted vertically on a wall
Answer:	It has been two weeks since I bought this snake endoscope camera. I used it to repair my drain pipe. When I got this inspection camera, there was still electricity in it. After a full recharged, I used it several times. It still has power. I think it can be used for at least 4 hours after fully charged. This is a good device with a large capacity battery.
Question:	Can this be synced with the wireless smoke alarms also
Answer:	Hello, this is how I did it. Insert the USB data cable in the shutdown state, and then turn it on again, the data of the TF card can be directly read by the computer. When the memory card is full, I will transfer the important files inside to the computer, and then format the TF card, then you can start using it again, hope it will help you.
Question:	Are batteries included with the product
Answer:	I use it to check my household appliances. I also encountered the problem of blurred video before. Before using it, check whether the lens is blocked by dirt and wipe it clean with a lens cloth. And because the focus of the inspection camera is 3-10cm/1.2-3.9inch, the observation distance needs to be within this range to get the best quality pictures and videos. When I do these two points, It works well.

Product features

TEST/SILENCE Button

The TEST/SILENCE button allows you to test the alarm to ensure it is functioning properly. When false alarms occur, the unit can be silenced with a simple push. Make sure to test your alarm every week.

85 dB Loud Alarm

This alarm is designed to give you the earliest possible warning of CO threat with both a loud 85 dB alarm and a rapid flashing red LED indicator. This will wake up you and your family, even when sound asleep, giving you more response time to escape or create an escape plan.

Self-Check Function

This CD07 10-Year battery carbon monoxide detector will automatically check its battery and sensor every 10 seconds to ensure that the key sensor and critical circuit are working properly.

Low Battery Warning

When the battery power is low, an LED light will flash yellow with 1 beep every 60 seconds. In this case, please deactivate the CO alarm and replace it with a new one.

• 10-YEAR BATTERY LIFE: This combination smoke alarm and carbon monoxide alarm provides 10 years of continuous power with a built-in lithium battery; provides continuous monitoring of smoke and CO levels, even if there's a power failure; an end-of-life signal will let you know when it’s time to replace the unit for safety
• FEWER FALSE ALARMS: X-SENSE carbon monoxide fire alarm is equipped with combination photoelectric smoke and electrochemical CO sensors that work independently of each other; instantly notifies you when dangerous smoke or CO concentration is detected while minimizing false alarms; provides the ultimate protection from 2 deadly threats, all contained in 1 unit
• SIMPLE TO USE: The test/silence button of this smoke alarm carbon monoxide alarm enables you to test the alarm weekly, and to easily silence the alarm when false alarms occur; malfunction and low battery warnings allow you to easily know the working status of the alarm; in case of an emergency, an alarm tone of over 85 dB will instantly alert the entire household, even those in sleep
• 2 ALARM TYPES FOR MORE CONVENIENT: Different alarm patterns of this carbon monoxide alarm and smoke alarm tell you it is either smoke or carbon monoxide is detected without checking the LCD display; smoke alarm: delivers 3 long beeps every 1.5 seconds and the red LED flashes with the alarm sound; CO alarm: delivers 4 quick beeps every 5.8 seconds and the red LED flashes with the alarm sound
• EASY INSTALLATION WITH GUARANTEED QUALITY: X-SENSE smoke carbon monoxide alarm combo requires no rewiring; easy to mount on any wall or ceiling without an electrician; all X-SENSE CO alarm and smoke alarm are rigorously tested to meet UL 217 and UL 2034 safety standards; comes with a 60-day money-back guarantee and 5-year warranty

User questions & answers

Question:	Are these smoke detectors interconnected if I ring one will they all ring
Answer:	No
Question:	I have kiddie combo smoke/co alarm model kn-cosm-18 hardwired , is it okay to replaced that with this non-hardwired
Answer:	Yes, I have mostly smoke only with two that also detect CO all in the same network.
Question:	Does this smoke/carbon monoxide detector meet the California Fire Marshall requirements for installation in rental units
Answer:	I checked with the manufacturer, they said any detector with smock sensor could be linked up to 12.
Question:	What are the differences between the x-sense sc03 & sco1 smoke detector and carbon monoxide detector alarms
Answer:	http://www.propertyevaluation.net/Photoelectric%20vs%20Ionization%20Smoke%20Alarms%20-%20Deadly%20Differences.html You DO NOT want a ionization alarm

Product features

When the LED indicator flashes RED, an alarm will sound, indicating one of the following four modes:

1. Smoke Alarm Mode: flashes red with 3 long beeps every 1.5 seconds.
2. CO Alarm Mode: flashes red with 4 quick beeps (every 5.8 seconds for the first 4 minutes, and every 60 seconds after 4 minutes).
3. Test Mode: flashes red with 2 sets of 3 long beeps, followed by 2 sets of 4 quick beeps.
4. Silence Mode: flashes red once every 5 seconds (no beeps).

The LED indicator flashes GREEN to indicate the following three working modes (no beeps):

1. Standby Mode: flashes green once every 60 seconds.
2. Exiting Alarm Mode: flashes green once per second for 5 seconds.
3. Exiting Silence Mode: flashes green 3 times.

When the LED indicator flashes YELLOW, it is important to check the working status of the alarm. There are three possible scenarios:

1. Low Battery Warning: flashes yellow with 1 beep every 60 seconds.
2. Smoke Malfunction Warning: flashes yellow 1 or 2 times with 2 beeps every 40 seconds.
3. CO Malfunction Warning: flashes yellow 3 or 4 times with 2 beeps every 40 seconds.

Technical Specifications

Power Supply: 10-year sealed lithium battery

Smoke Sensor Type: Photoelectric

CO Sensor Type: Electrochemical

Product Life: About 10 years

Safety Standards: UL 217 & UL 2034

Alarm Noise Level: 85 dB at 9.84 ft (3 m)