12 best home gas leak detectors

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 ET120 is it the perfect choice for HVAC professionals. It is an easy-to-use tester that provides audible and visual alarms in the presence of methane, propane and other combustible gases at concentrations as low as 50 ppm. It features two levels of sensitivity depending on users' needs: High (approximately 50 to 1000 ppm) and Low (approximately 1,000 to 10,000 ppm). Gas Leak Detector with 18-Inch flexible gooseneck. Combustible gas detection range: 50 to 10000 ppm. Combustible gas detection range: 50 to 10000 ppm. Over-molded body for comfortable grip. Auto power-off after 10 minutes of non-usage conserves battery life. Includes detector, 4xAAA batteries, instruction manual and storage pouch. For more than 160 years, Klein Tools has manufactured premium-quality, professional-grade hand tools that deliver the performance, durability and precision needed to get the job done right. Our family of engineers, workers and craftsman continue to put six generations of expertise into every tool we create by using only the highest quality materials, superior workmanship, and keeping manufacturing as close to home as we can. Klein isn't just the name of our company, it's also our family name. And since we're an American company that's family-owned and family-run, you know you can count on us to be here tomorrow. Klein Tools doesn't just make great products, we make great products that stand up to the demands of the professionals who use them every day ... Since 1857.

• Detection range: Approximately 50 to 10,000 ppm* (*based on Methane)
• Two levels of sensitivity: High (approximately 50 to 1000 ppm) and Low (approximately 1000 to 10,000 ppm)
• Five red LED's (visual) and 85dB audible alerts that increase with gas concentration
• Automatic zero-point calibration at power-up (lights will flash during self-calibration; this does not indicate the presence of gas)
• 18-Inch flexible gooseneck expands sensor's reach; clips onto meter for storage

User questions & answers

Question:	Will this detect a co2 leak
Answer:	this gas detector very easy to use and it works precisely
Question:	Can this detect r22 and 410a
Answer:	After warm-up and the yellow light goes out adjust the side dial to adjust the sensitivity until the first, bottom LED is at the threshold of lighting up and the ticking just starts to sound. If the alarm sounds after warm up the knob is rotated too far + rotate - until the first LED is lit or about to be lit. If the first level red light is lit and the alarm is not sounding, it's not detecting any gas.
Question:	Will this detect hydrogen
Answer:	HI,Usually the products can work for at least 2 to 3 years , if sensor is not sensetive enough , we recommend you to replace the sensor at that time . You can send Email to contact us, feedback your address and we will arrange our after service team to ship sensors to you for replacement. We can use DHL to ship , or ask our US local team to ship from your side . Anyway, if you have any concerns or question , just contact us and we will reply in 24 hours and feedback corresponding solutions . Thank you choose our products and service .
Question:	Does this detect hydrogen sulfide
Answer:	Turn it on let it warm up a just dial till lights go out and ticking starts the ticking means the sensor is sampling the air if it detects methane it will alarm the more lights the higher the gas concentration

Product features

Combustible Gas Leak Detector

The ET120 is an easy-to-use tester that provides audible and visual alarms in the presence of methane, propane and other combustible gases at concentrations as low as 50 ppm, making it the perfect choice for HVAC professionals.

Product description

Product description:



Features:



Adopting high-quality semiconductor calefaction type sensor.

MCU intelligent supervise control and SMT chip technology.

Visual and audible alarm function.

LED numeric display technology, display instant gas leak thickness.

Three indicators: POWER, STATE, ALARM



Specifications:



Detecting gas: LPG, natural gas, and coal gas

Power frequency: 50/60Hz

Power supply: AC100V~AC240V

Rated load: <4W

Alarm thickness: LPG: 0.1~ 0.5%; natural gas: 0.1~ 0.3%; coal gas 0.1~ 0.5%



Alarm volume:≥85dB

Working environment: +14℉ - 122℉( -10 ° C ~ 50 ° C)

relative humidity <97 RH

Storage temperature: -13℉ - 131℉(-25 ° C ~ 55 ° C)



Package includes:



1 x Gas Detector 1 x English User Manual

• 【Detect Multiple Gases】- Home gas detector suitable for detecting LPG(Methane), natural gas, coal gas, gas fuel, artificial gas, liquefied petroleum gas, liquefied natural gas etc.
• 【LED Digital Display & Sound Warning】- Gas Detector offers Voice Notification and a digital readout of the GAS concentration.When gas leak concentration reaches presetting level, the alarm provides a visual and audible signal. 85dB alarm sound, reduce the risk of gas explosion and protect your family's life and property safety.
• 【Easy to Install】- Gas leak detector adopts Easy-to-install Design, can be used by plugging directly into the power socket to detect leaked gas.
• 【Widely Applyed 】-This product can be used as independent family alarm equipment, and also can be used as front detector of alarm system. Widely Used for Restaurant, Hospital,Hotel, Oil Factory,Garage, Gas Station etc.
• 【Precautions】- The system warm-up time is about 2-3 minutes. During this time period, the gas test will not work. You need to wait for the display to show 0 (the system enters the working state) before it can be tested normally.Gas leak detector adopts Easy-to-install Design, can be used by plugging directly into the power socket to detect leaked gas.

User questions & answers

Question:	Where do I get one for home to detect natural gas leak. Must be battery operated as have no 120v outlets near ceiling
Answer:	Yes it works fine
Question:	Is this a us style plug
Answer:	No, this only detects gas. Check out the 70-742 KIT. (Must get the kit. The kit has the valve). This has a valve and detector. It will turn off the gas if the sensor detects a leak.
Question:	What is the operating temperature range of the gas detector? Can it work normally in cold places
Answer:	No it is not. The MTI SA-8 is 6.5 inches wide x 3.5 inches tall x 1.25 inches in depth. This unit is 12 inches wide x 8 inches tall x 4 inches in depth.
Question:	should i be alarmed if the detector starts to beep at 3 then go to 4 and continue to beep at
Answer:	Of course, you can. This uint certainly won't know the difference between a kitchen in an RV, or a home! As long as you supply it with the appropriate power source 12v..it will be fine.

• Portable natural gas detector for detecting all combustible gas leak, LPG, LNG, fuel, hydrocarbons (methane, natural gas, gas, ethane, propane, benzene, Acetylene, propane, Pentane, hexane, gas oil, toluene), halogenated hydrocarbons(methylchloride, methylene chloride, three chloride, vinyl chloride), alcohols(methanol, ethanol), sewer gas etc. You can use it in your house or your RV.
• Come with 3xAA batteries, ready to use! Compact size, light weight, easy to carry and operate. Long flexible stainless probe reaches all areas.
• Audible semiconductor probe and auto fast warm-up.
• Instant response, pinpoint leak position, whether in your home or in your RV. Audio & visible leakage alarm indication and adjustable sensitivity. Minimum 50 PPM (methane)
• Video tutorial for your preparation. Please scroll down to "Related Video Shorts" on this page to find out. Also, you can download the latest version of Instruction Manual in the section of Technical Specification, on the same page as product description.

User questions & answers

Question:	This says natural gas detector..I need propane detector, will this work or should I get something specific to propane
Answer:	The instructions say to place it 15' from the heat source, but if I were in that 6' x 6' blind, think I'd feel safer with this detector. It might go off more readily if too close to the source.
Question:	Does it detect LPG
Answer:	Because they do not think your smart enough to do the math. Check everything, volume purchases no longer equal cheaper pricing per unit.
Question:	Will this device tell you which gas is possibly leaking ? Such as natural gas or methane? I have an odor in different parts of my home sometimes
Answer:	I just installed three of the Kidde CO Alarm Model KN-COB-LP2. The holes are exactly 3.00 inches (7.62 mm) apart. I recommend sliding off the back plate and using it as a template, though. Install One screw, or in dry wall using the provided plastic anchors, Drill one 3/16" (4.75 mm) hole and install the screw. Then hang the back plate off the single screw and level it and use a pencil to mark the exact center of the second hole. Install the second screw. Check with back plate to see if they align sufficiently (My first one was off a little because I did not follow the procedure above, but it was still OK, just not perfect).
Question:	My home has sewage smell leak somewhere (usually hydrogen sulfide). Can this product detect the source of leak
Answer:	Be aware that the sensor has a 7 year life. At least that is the information I got from Kidde. I am replacing my 2 units purchased in 2011.... Otherwise they appear to be good. I am not sure if other brands have a similar lifespan.

Product features

PANGAEA Portable Gas Leak Detector/Sniffer - P-AS8800L

This handheld detector is the best solution for tracking down the source of a leak before it becomes a major problem. It can detect all combustible gas leak, LPG, LNG, fuel, hydrocarbons (methane, natural gas, gas, ethane, propane, benzene, Acetylene, propane, Pentane, hexane, gas oil, toluene), halogenated hydrocarbons(methylchloride, methylene chloride, three chloride, vinyl chloride), alcohols(methanol, ethanol), sewer gas etc.

• Detect Various Flammable Gases: Portable Natural gas sniffer and tester is used to locate exact gas leak for various combustible gas, such as methane, natural gas, propane, LPG, sewer gas, coal gas, gasoline, other flammable gases
• Detection Range: Approximately 50 to 10,000 ppm (Based on Methane), instant response once encounter leakage points
• Easy-to-Use Gas Leak Detector: Powered by 3 AAA batteries (Not included), 12 inch bendable gooseneck can locate and detect the gas leaks even in hard-to-reach areas at home & VR, kitchen and fireplace etc., refer to “How and Where to Use the Y201 Combustible Gas Detector” video
• Sound and Visual Gas Alarm: Six red LED’s (visual) and 85dB audible alerts once encounter gas leakage along pipeline or around the suspected leakage points
• Original Design and Lifetime Technical Support: Design patent and certifications are applied to make sure the product quality and uniqueness. Replacement and friendly customer service are available even it’s broken in 24 months.

User questions & answers

Question:	is it precise
Answer:	Yes ours came with the headgear
Question:	Is any detection of gas harmful? My apartment supposedly just fixed its gas leak, but this is still showing the first level red light within my apt
Answer:	Don't know the max size. I wear a 7 3/4 hat and this fit fine. There is a minimal amount of adjustment left.
Question:	Do I need to replace the sensor after 2 years to keep this working? Or, is the unit useless after about 2 years? I read the sensor tip has a lifespan
Answer:	These type of hard hats is varies but it is fiberglass though. The color can be light to mid dark brown. They ship me with a light brown one. I was surprised it was very light, it was thin. Just be careful when buying from Warehouses. They say they will give you a new ratchet suspension but they never did. So be aware of that and if it happen they won't ship you a new one, they will ask you to reship it back and buy a new one, hopping you will receive the hard hat with the suspension but NO GUARENTEE. But to answer your question, yes it does look like that, but remember it varies on the seller because it come from a warehouse.
Question:	I don’t understand after it warms up how to detect gas ? Do I move the button until it stops ticking and no alarm? I move + and alarms sounds
Answer:	Front brim, ball cap style.

Product features

Techamor Portable Gas Leak Detector/Sniffer - Y201

The Y201 portable sniffer is an easy-to-use device that provides sound and visual alarm in presence of methane, propane, such as LPG, fuel and natural gas.

It’s mainly used to find and locate exact gas leak point along gas pipeline, around fittings or connectors at home & VR, and other similar applications. Helps to save hundreds of diagnostic fees from technician or plumber, and makes it's possible to debug gas leakage anytime by DIY.

For 24h gas monitor and detection, refer to Y301 and Y302.

2.1 Warm up process: around 10s

The speaker will always have “di didi…” until we turn off device, except one moment in step 2.2. At warm up period, ticking noise frequency is slow: around 2~3 times/s.

The knob is used to adjust sensitivity of detector after finish 10s warm up process, during the process, no matter how to adjust the knob, the device won't have any reactions.

2.2 Rotate the knob to adjust sensitivity

If the alarm sounds prematurely and LED lights are on after warm up, need to decrease sensitivity to prevent false alarm (dial downward "-", shown as red arrow) .

Rotate the knob to adjust sensitivity until the first bottom LED turn off or at the threshold of lighting up, and the moment that ticking sound stops. This is the best status.

But if it's inconvenient to get the best status, we can just make the first bottom LED be on and have slow ticking "di di...." sound. Because once encounter leakage, all the rest 4~5 LED will be triggered on together at just one moment.

2.3 Ready to sniff or trace leakage

Move the probe along pipeline or around the suspected leakage points, such as fittings, connectors and switches, once encounter gas leakage, all 5~6 LED lights will be triggered immediately and the low frequency (2~3 times/s) ticking will change into piercing sounds (frequency 6~7 times/s, too fast and human ears cannot distinguish one time by one time) .

3. Different Usage Pictures Collection from Lovely Customers

4.1 Could tell more related to use?

1) Easy to understand video will be good choice, refer to “How and where to use the Y201 gas leak detector” around pictures area at beginning . 2) Get service support, engineers on staff from factory online will help to answer any questions related to leakage if above video can't help to understand.

4.2 Why always has ticking sound?

The design of ticking sound has two purposes: 1) Indicates the device is working.For some cases, we need to extend the probe to the area that we can't see LED lights, customers could judge thru the sound changes. The green power LED light is also used to indicate the device is working. 2) Represent different levels of gas leakage. Low frequency (around 2~3 times/s) means warm-up period or no leakage, if changed into high frequency (around 6~7 times/s) during detection process, means encounter leakage issue.

Notes: above is based on we set sensitivity well, because if we rotate the knob at anti-clockside too much, even there don’t have any leakage, all the 6 LED will be triggered on and sound will become piecing high frequency.

4.3 Some batteries only use 10~15 minutes, then low battery indicator is on.

According to our experiment data at lab for different batteries brand, usually last from 15 minutes to 4 hours. Different brand batteries have very different quality. Indeed, the device is hungry for batteries. The sensor in the probe needs large power for micro burning process and we can feel a little warm if we use finger to hold the probe. Another reason maybe product itself, components (resistor, capacitor......) tolerance or damage on the PCB board may also lead to large power consumption, but the rate is very low.

Usually when we find customers from home inspection company, we will suggest purchasing rechargeable Li-batteries, because their technicians or plumbers use the device frequently and Li-batteries will help to save some batteries cost.

4.4 Is it normal or safe if get 1 red bar when move to high moisture room, around connectors or simply blow on probe?

Don't worry, it's normal, the large moisture change and CO affect the sensor performance, and may lead to false alarm by 1~2 LED red bars, but only last for 1~3s (very short time) if we move probe away. If we encounter leakage along the pipeline or connectors, all 5~6 LED bars will be triggered on at one moment, light and piercing sound alarm will last at least for 6~8s.

4.5 what's best distance between probe and pipeline/ranges/connectors.... during check process?

Recommend 1~10cm, if too far, concentration will become smaller as distance increase from leak point, and maybe not enough find and locate tiny leakage.

4.6 How about bubble method to check leakage compared with Y201?

Bubble is very good way and can be used to check all kinds of gas leakage while Y201 is mainly used for combustible gas. But for very tiny leakage and very strong leakage, bubble method maybe not good enough: 1) too tiny leak can't blow up bubble, too strong will blow the liquid away and can't have bubble, 2) some areas we can't extend to apply bubble liquid, 3) need good luck and skills to control the bubble liquid concentration if DIY bubble liquid, 4) in some case, liquid contact may lead to equipment or device damage.

The best way is: use both methods for double confirm if allowed, since bubble is more visible.

Product description

As the only US based retailer of this Yeezou Y201 gas detector, we provide expert support with our chemist on staff to answer any technical questions. Buy confidently; this device is covered by EG Air's lifetime replacement guarantee. Also included/emailed is a 20+ page eBook on Gas & Air Quality Hazards.



FIND GAS LEAKS AT HOME:

Find the location of any natural gas, propane, LP or fuel leaks by running sensor probe along a gas pipe, fuel line, or fittings near any gas smells. Pinpoint fuel leaks from your lawnmower or car. Gas leak is found when alarm sounds and LEDs light up. Don't pay a technician's $100+ diagnostic fee when you can find a gas leak anytime with this propane & natural gas detector.



STEPS/TIPS ON USE: (see video at https://www.amazon.com/vdp/17873f5854174d4db2087794a60238be)

-To detect leaks while minimizing false alarms, turn the sensitivity dial upward toward (+) until the device begins to alarm away from any gas leak. Turn sensitivity dial downward (-) slightly until alarm stops and 1st LED just turns off. Now, any small increase of gas level (as from a leak!) will cause the alarm to sound.

-If alarm sounds prematurely, sensitivity needs to be decreased to prevent false alarms.

-Each leak varies in leak rate and background gas concentration, so adjust sensitivity level to find any leak.

-Allow device to warm up sensor for 10s until yellow “Warm Up” light turns off.



SPECIFICATIONS:

Maximum Sensitivity: 50 ppm

Alarm range: 0.1%-40% LEL

Warm up time: 10s

Response time: ≤2s (10% LEL)

Alarm: Visual with 6 Red LEDs, Audio with Variable Tone Frequency

Power: 3 AAA batteries



Package Includes:

-Gas Leak Sniffer

-Manual

-Protective Bag

• A GAS DETECTOR FOR MOST EVERY COMBUSTIBLE GAS: Locates the source of explosive gas leaks including natural gas or methane, propane, fuel including gasoline or kerosene, sewer gas, alcohol, butane, coal gas, ethane, toluene, and other flammable gases.
• PORTABLE & FLEXIBLE GAS LEAK DETECTOR: Powered by 3 AAA batteries, this portable gas detector sniffer can be taken anywhere to find gas leaks indoors or outdoors. Bend 12-inch length sensor neck in any direction along gas pipes or fuel lines in confined spaces to find gas leaks.
• VISUAL / AUDIO GAS INDICATORS: 6 LEDs with 85dB tonal alarm notify users of gas leaks and relative concentrations of natural gas & propane.
• ADJUSTABLE SENSITIVITY: Increase sensitivity dial to find small gas leaks. Decrease sensitivity to find larger explosive gas leaks while filtering out false alarms from background gas levels. If alarm sounds when turning on detector, sensitivity needs to be decreased toward (-).
• LIFETIME USA WARRANTY + ORIGINAL DESIGN: As the only US retailer of this item, we stand fully behind this product and will replace it if it ever breaks! We have a Midwest-based chemist on staff to answer any technical questions. Also included is a 20+ page eBook on Gas and Air Quality Hazards.

User questions & answers

Question:	is this detector constantly plugged in like smoke detector
Answer:	I suspect it can. If you have wind conditions of course that would affect how much gas the detector would pick up but if it was close enough to the source it should work
Question:	How often should a gas detector be replaced? Every 5 years
Answer:	No. LPG, natural gas, and town gas, according to the instructions.
Question:	Is the alarm constant until the situation is addressed
Answer:	I looked at the instruction manual and the box and it doesn't say anything about being UL listed. It is built in China but I don't know if that has anything to do with what is or isn't UL listed. Sorry I couldn't help more.
Question:	Can I use with a battery
Answer:	Hello, this product does not detect carbon monoxide, please pay attention when buying. Propane cannot be detected, but methane can be detected.

• Portable natural gas detector for detecting all combustible gas leak, LPG, LNG, fuel, hydrocarbons (methane, natural gas, gas, ethane, propane, benzene, Acetylene, propane, Pentane, hexane, gas oil, toluene), halogenated hydrocarbons(methylchloride, methylene chloride, three chloride, vinyl chloride), alcohols(methanol, ethanol), sewer gas etc. You can use it in your house or your RV.
• Use 3xAA batteries. Compact size, light weight, easy to carry and operate. Long flexible stainless probe reaches all areas.
• Audible semiconductor probe and auto fast warm-up.
• Instant response, pinpoint leak position, whether in your home or in your RV. Audio & visible leakage alarm indication and adjustable sensitivity. Minimum 50 PPM (methane)
• Video tutorial for your preparation. Please scroll down to "Related Video Shorts" on this page to find out. Also, you can download the latest version of Instruction Manual in the section of Technical Specification, on the same page as product description.

User questions & answers

Question:	This says natural gas detector..I need propane detector, will this work or should I get something specific to propane
Answer:	Please tightening up the End Cap and the Body before you use it or recharge the flashlight. Charging NOTE: When you plug in usb cable,the indicator in side switch will show steady blue light or a rapid dim fast-flashing of red,which means a power source is detected, but the battery didn't connect to power source. 1. Tighten the End Cap and the Body properly. 2.Press the tail switch to turn the light on (the same as you turn on the flashlight). Then the charging indicator slow blinking red. Steady blue light shows fully charged. Charging 1. Press the switch enter the open mode, and then connect the flashlight to a power supply with the USB cable. 2. When the flashlight is in charging status, it will automatically turn off and the red indictor at the switch position blinks once every 1.5 seconds. When the battery is fully charged, the blue indicator will be on. 3. The flashlight equipped with protection apparatus, the flashlight can be connected to the power supply for a long time (The charging time for 3400mAh battery is about 7-8 hours). Any questions, please welcome here.Please check user manual, search "Soonfire customer service" online to find the way to us or go through Amazon’s direct messaging service. We will serve you with all ours heart. Thanks Soonfire Team
Question:	Does it detect LPG
Answer:	Soonfire DS30 USB Rechargeable Waterproof Flashlight can not zoom in and out,thanks!
Question:	Will this device tell you which gas is possibly leaking ? Such as natural gas or methane? I have an odor in different parts of my home sometimes
Answer:	Soonfire Soonfire DS30 USB Rechargeable Waterproof Tactical flashlight User's Manual: please ensure turn on the tail switch when using / Charging it. 1.Half-press - release the tail switch for tactical lighting mode 2.Open the tail tactical switch,press the side button to adjust the brightness: Low-Mid-High cycle 3.Press the side button for 1.5 seconds to switch the daily lighting mode and SOS control mode: press the side button to adjust the brightness: Low-Mid-High-Strobe-Flash-Slow Flash cycle use. 4.Quick double-click the side of the switch in any mode,directly into the ultra-bright lighting mode; 5.Close the tail switch to close and memorize the last used lighting mode. Note: 1.The light stops lighting when it's charging 2.If you use the abnormality,please remove battery from the flashlight and re-put into,then re-tighten to ensure good touch. Charging: Install the flashlight - Open the tail switch (the flashlight is in working state) - Connect the USB cable for charging (the flashlight is automatically turned off after normal switching.) We advice do not use the flashlight in the charging state. If you need emergency lighting,please press key 5 seconds or more, the flashlight will work in low gear) - blue light, charging in the end (3400mAh: charging time 7-8 hours) Please feel free to contact us if you have any further questions.thanks!
Question:	My home has sewage smell leak somewhere (usually hydrogen sulfide). Can this product detect the source of leak
Answer:	You can email them at [email protected] Website:http://www.soonfire.com

Product features

Digital Portable Gas Leak Detector/Sniffer - PHG100

This digital detector is sensitive with ppm (0-9,999ppm) and 1ppm resolution concentration display.

It can detect all combustible gas leak, LPG, LNG, fuel, hydrocarbons (methane, natural gas, gas, ethane, propane, benzene, Acetylene, propane, Pentane, hexane, gas oil, toluene), halogenated hydrocarbons(methylchloride, methylene chloride, three chloride, vinyl chloride), alcohols(methanol, ethanol) etc.

Detect the Slightest Leakage

With the resolution of 1ppm, it can detect even the minimum leakage, which is unimaginable with other beep/light models!

One Button Detecting

All you need it just to turn it on, and pin point the suspicious leakage source and nail it! No complicated calibrations, or fancy functions!

Large LED Display

The screen is bright so you can easily read the value of gas concentration, instantly!

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

As the only US based retailer selling this item, we have a chemist on staff to answer any technical questions. We also include a 20+ page eBook on Gas & Air Quality Hazards that is emailed after purchase.



Home Safety

Help reduce your worries of leaving the stove on with this combustible gas siren & speaking voice alarm with continuous concentration monitoring and LED readout. Help protect your family from suffocation dangers and your home from explosive hazards with this device. Detection levels ranges from 0% to 20% of LEL for multiple combustible gases including methane, propane, butane, coal gas, town gas, LPG Liquid Petroleum Gas, LNG Liquid Natural Gas.



See displayed gas levels in % LEL go up before the alarm sounds at 5% of LEL, with 100% LEL being the minimum gas level for fires. Place alarm near ceiling for natural gas and near floor for propane/butane.



Testing/Tips:

-Due to added odorants, people can often begin smelling a gas leak at 1% LEL whereas available retail gas alarms set an alarm threshold of 5%-25% LEL to avoid frequent false alarms. Do not be alarmed if you smell gas before the device alarms.

-Every couple weeks, test your alarm with unlit butane from a cigarette lighter or propane source.

-Item undergoes self-test warmup sequence for 3 min on startup.

-Avoid placement where airborne contaminants like cooking oils can coat and decrease sensor sensitivity.



If you are ever not satisfied with your purchase, please email us and we will make things right!



Product Specifications:

Power: AC 110-240V

Area of Usage: Household, Camper

Alarm Set Point: 5% of LEL

Body Material: ABS Plastic

Power: <3.0W

Working temperature: 0 to 55°C

Environment humidity: 0 to 95%



Package Contains:

1 Gas Detector w/ 6 feet AC cord

2 Mounting Screws for Detachable Backplate

Double-sided Adhesive Mounting Tape Patch

User Manual

• SAFETY - Help reduce your worries that the stove gas has been left on accidentally. This explosive gas leak alarm will sound an 80dB siren and speaking voice alarm with top flashing red light when it detects combustible gases including kitchen methane / natural gas or camping propane before it reaches an explosive level leading to fires. Feel more assured that your family is safe.
• SCIENTIFIC - This alarm precisely measures and displays concentration of combustible gas as an easy-to-read percentage from 0% to 20% of LEL. View the concentration of combustible gas on the LED screen before it reaches its explosive concentration level. Audible siren and speaking alarm sounds when gas level reaches 5% of Lower Explosive Limit (LEL).
• ECONOMICAL & GREEN - This alarm uses <3 watts of electricity and has a small energy footprint. This alarm will also help prevent someone from leaving on the stove, reducing your gas bill.
• DURABLE - Shelled in double-sided ABS, this product is anti-mildew, anti-pest, and anti-corrosive. Wipes clean easily. Use in the kitchen or in your camper.
• ORIGINAL DESIGN & LIFETIME USA SUPPORT - We have worked with the supplier that holds this product’s design rights so we are sure this item is tried and tested. We have Midwest-based chemist on staff to answer any questions you have. Also included will be a 20+ page eBook on Gas and Air Quality Hazards that will be bundled with this alarm.

User questions & answers

Question:	Does the sensor degrade over time making it less reliable
Answer:	No, it doesnt beep enough to need to turn the alarm off. If its beeping after the initial plug-in alarm, then you should call your gas company.
Question:	Hello. i have bought this product 2 months ago. i see the reading is always switching between 0 an d 1. is it ok? i smell nothing
Answer:	The location depends on the type of gas. For natural gas put it high. For propane put it near the floor. I'm worried by the low reviews because the alarm is not detecting any low level of gas.
Question:	Does the unit make any kind of sound when there is no gas present
Answer:	I would definitely call your gas company
Question:	Would like to know where the unit should be installed, I have cabinets above the stove, directions say 30 cm from the ceiling
Answer:	As long as the number is not 0, there is a gas leak. The larger the value, the more serious the leak.

Product description

Natural Gas Detector, Gas Leak Detector, Household Propane Leak Detector



Why choose this gas detector?



1.Natural Gas Detector:Gas leak detectors for home use make your environment safer.

2.Gas Leak Detector:Adopt high-precision sensor technology to accurately monitor leaked gas.

3.LED Digital Display & Sound Warning:Gas Detector offers Voice Notification and a digital readout of the GAS concentration.When gas leak concentration reaches presetting level, the alarm provides a visual and audible signal.

4.Easy to Install:Gas leak detector adopts Easy-to-install Design, can be used by plugging directly into the power socket to detect leaked gas.

5.Precautions:The system warm-up time is about 2-3 minutes. During this time period, the gas test will not work. You need to wait for the display to show 0 (the system enters the working state) before it can be tested normally.Gas leak detector adopts Easy-to-install Design, can be used by plugging directly into the power socket to detect leaked gas.

• Natural Gas Detector: Gas leak detectors for home use make your environment safer.
• Gas Leak Detector: Adopt high-precision sensor technology to accurately monitor leaked gas.
• LED Digital Display & Sound Warning:Gas Detector offers Voice Notification and a digital readout of the GAS concentration.When gas leak concentration reaches presetting level, the alarm provides a visual and audible signal.
• Easy to Install: Gas leak detector adopts Easy-to-install Design, can be used by plugging directly into the power socket to detect leaked gas.
• Precautions: The system warm-up time is about 2-3 minutes. During this time period, the gas test will not work. You need to wait for the display to show 0 (the system enters the working state) before it can be tested normally.Gas leak detector adopts Easy-to-install Design, can be used by plugging directly into the power socket to detect leaked gas.

User questions & answers

Question:	is it sensitive to gasoline/petrol fumes
Answer:	The Noise Reduction Rating (NRR) is 25dB

• ✅ PROTECT YOUR FAMILY! - Be worry free and know you did everything to keep your family safe from accidents caused by dangerous gas leaks from your stove, furnace, water heater, washing machine, fireplace, kitchen, garage or grill.
• ✅ SAVE YOUR TIME- Plug and Play! Don't waste your precious, limited free time with complex installations and never change a battery! Just plug in and get on with your day!
• ✅ STAY STYLISH - No tacky cord! Don't drill holes in your wall! This sleek and modern white natural gas alarm is wireless and will complement the style of your home or camper without detracting from your interior design.
• ✅ GET MAXIMUM SAFETY - The All-In-One GasKnight natural gas leak detector detects the main deadly gases: 1. Natural gas (Methane, butane, ethane, LNG, etc) and 2. Propane (LPG or liquefied petroleum gas).
• ✅ HAPPINESS GUARANTEED - In plain English, if you don't like your GasKnight, we'll refund your money. We are an American company. FREE 2-YEAR WARRANTY AVAILABLE. ORDER YOURS TODAY!

User questions & answers

Question:	Would this work for a gas water heater
Answer:	Generally yes although you could attach it to a portable external battery for smartphone as the power input is 5 volt micro USB. Hope this answers your question.
Question:	What does it mean if it flashes blue & talks
Answer:	It depends on the ambient conditions but generally the limit for operation of a gas detector is around 4-5 years. Most gas detectors fail in 2-4 years due to the filament type sensor used. Consequently, regular testing of the device is essential to ensure operability.
Question:	i had to unplug this from the wall. I plugged it back in it turned blue then keeps saying something that I don't understand. can't find instructions
Answer:	Yes, the alarm will continue sounding until the concentration of combustible gas is less than 5% of the lower explosive limit.
Question:	About how long will this product last before it needs to be replaced? And how do you know when it needs to be replaced
Answer:	You could theoretically use the product with a battery and USB solar panel power supply but there is a limit if using with only a battery. For example, physical limit for 4000 mAh battery is 4000 mAh/110 mA = 36.4 hours assuming the FULL 4000 mAh is available for discharge which it is not usually as the 4000 mAh seen is rated by the battery manufacturer for charging of phones, not powering alarms. There is a natural drop of voltage as the battery discharges from ~5V to 3.6V. What can be done is get a battery with a larger capacity such as a 6600 mAh battery (or put multiple batteries in a parallel circuit if done safely).

Product features

Save Your Time! Plug and Play!

● Don't waste your limited, valuable time with complex installations and never drill a hole in your wall! The GasKnight just plugs right in.

● Plugin the GasKnight to the wall near stoves, heaters, fireplaces, grills, sump pumps, water heaters, washing machines, dishwashers, sinks, and in basements, bathrooms, kitchens, RVs, campers, or wherever there is a potential for gas leakage.

● Additionally, if you are worried about sewer, cooking, coal, town, meter, camping or liquefied natural gas (LNG) leaking at your apartment complex, restaurant, hotel, mobile home, boat, food truck or even rental property, then the GasKnight is perfect for you.

Superior Functionality

● EXTREMELY LOUD (>85 dB) alarm will call out the gas leak with the combination of a siren, LED flashing light, and 3 levels of voice warning that tell you what to do.

● The GasKnight Logo is your friend. Tap it to test it.

● The alarm is impossible to miss. In addition to it's loud audio alarm, it's flashing red light will also grab your attention.

Keep Your Style! No Tacky Cord!

● The GasKnight is sleek, trim, and clean and will stylishly plug right into your wall.

● NO TACKY CORD! That means that your guests won't have the opportunity to comment on any tacky cord hanging across your kitchen.

Maximum Protection

● The GasKnight explosive gas detector detects the main kinds of deadly flammable gases including natural gas, LPG, LNG, propane, methane, and butane.

● LONG LASTING with HIGH-QUALITY sensors, the GasKnight’s average life span = 5 years.

Free Gas Safety E-Guide with Purchase! Long Lasting Product Life!

● The GasKnight is white with a clean, crisp, & modern look and will blend into your kitchen or any other room quite well.

● A FREE E-Guide on home gas safety is included with your purchase!

● TRUSTWORTHY and LONG LASTING, GasKnight stands behind all of their products.

Product description

PROTECT YOUR HOME AND FAMILY

Gas can leak into your home from sources like old or damaged appliances or piping in homes, they're invisible and can dissipate quickly, it might not have physical signs or smells. Portable gas leak detector allows you quickly detect the exact leak location, even if it is not visible or is difficult to access. The device can save your time and money, the problems can be fixed fast.



FEATURES

√ Based on solid-state (semiconductor) technology, capable of detecting every low levels of gases, provides accurate and reliable detection.

√ High sensitive to 50ppm, adjustable sensitivity control provides precise location of leak quickly.

√ 15 seconds warm time from turn on, save your time.

√ Visual LEDs & Audible alarms, the ticking and flashing will get faster as you get closer to a leak.

√ 12.6-inch long goose neck probe to allow its use in tight, hard to reach locations.

√ Simple enough to be operated with just one hand.

√ Rugged ergonomic design with durable industry plastic, makes it comfort grip, yet tough.



WIDE RANGE OF APPLICATIONS

√ Quickly check and pinpoint potential gas leaks for home, kitchen, house, rv, camper, trailer, boiler rooms, sewer, basements, bathrooms, garages.

√ Identify the source of leaks in pipes, fittings, joints, valves, meters, gas storage tank/cylinders, propane gas grill/stoves, hot water heaters.

... more



TECHNICAL SPECIFICATIONS

Model: CC091

Maximum Sensitivity: 50 ppm

Detection Range: 50 to 10, 000 ppm

Alarm range: 10%-40% LEL

Warm up time: Appr. 15s

Response time: <2s

Sensor: Solid State Semiconductor

Alarm: Visual Alarm, Audible Alarm

Display: LEDs

Meter Type: Handheld

Power Source: 3* AAA batteries (NOT INCLUDED)

Probe Length : 12.6 Inch

Dimensions: 6.2" x 1.2" x 2.7"

• Combustible Gas Leak Detector - Detect and locate gas leak for Natural Gas, Propane, Methane, LNG, LPG, Butane, Fuel, Ammonia, Naphtha, Ethanol, Gasoline, Sewer Gas, Coal gas and other flammable gases.
• Reliable & Quick Response - Equipped with high sensitivity solid-state gas sensor provides accurate detection, quickly pinpoint even small gas leak within one second.
• Visible & Audible Alarm - Adjustable tick rate sensitivity with 6 LEDs and loud audible alarms indicate the presence and leak strength, and increase in frequency as the sensor tip get closer to suspected leak sources.
• Easy to Use - Long 12.6-inch flexible gooseneck probe for hard-to-reach areas, an easy to carry portable gas detector for home, kitchen, RV, camper, trailer, workplace, commercial and residential areas. Powered by 3 x AAA batteries (NOT INCLUDED).
• 24-Month Extended Warranty + FREE Lifetime Technical Support - We stand behind our products and services and will replace it if it ever breaks! User-friendly manual and video tutorial included.

User questions & answers

Question:	Will this detect leaks of RV propane tank
Answer:	I have been using this flashlight for a few months now and I feel the technical data provided is accurate. That data states 2hr 15minutes on high. I typically use high mode and push the turbo button when needed. I am somewhat of a flashlight "nut". I have quite the collection, this flashlight is my go to light. That "turbo" button is awesome.
Question:	Will this tool detect gasoline vapors leaking
Answer:	4400 lumens is measured by industrial standards. However, I4000R is designed to have more flood than throw. (A flood light covers a larger area while a throw light reaches further.) Human eyes are sensitive to the brightest center spot, aka "hot spot", but poor judges on the overall brightness. Do you want a light that covers most corners at close to medium distance, or a light that shines over a lake? The I4000R is the formal one.
Question:	An alarm sound after it warmed up, how to reset it
Answer:	Short press the mode button while the light is on to cycle through the 4 brightness levels. High -1100 lumens Mid - 330 lumens Low - 50 lumens Ultralow - 2 lumens" To access Turbo (4400 lumens), press and hold the mode button while the flashlight is powered on. To access strobe press and hold the mode button while the flashlight is powered off.
Question:	If there are video tutorials for operating
Answer:	Chargers for the 18350 vary in price a lot. Plan to spend about $18.00 for a fairly good one.