8 best alarm system with door sensors

• 🔔600 FT in OPEN AREA RANGE- 58 Ringtones & 5 Level Volume (0 dB to 110 dB) to Adjust.
• 🔔How Does Door Sensor Alarm Kit Works?- Attach 2 sections of sensor to a door/window frame. When you open the door, it will trigger the alarm unit and ring.
• 🔔Wireless Door Entry Bell Alert System- Will Keep track of your little children, use for home to alert you when someone open the door; Also use for garage/office/retail store.
• 🔔Easy To Install & Expand- Simply get the bell plugged into socket and Tear off the double-sided tape of the sensor and stick it on the door frame. You can add extra 20 receivers/transmitters.
• 🔔Friendly customer service in 24hrs to make sure your 100% satisfaction, we offer refund or replacement for the unsatisfied products within 12 months of delivery.

User questions & answers

Question:	Will it work if receiver is not in direct view of sensor meaning that is blocked by a bathroom
Answer:	This is the cap only. NO rotor.
Question:	How many transmitters can be added and work with the same receiver
Answer:	Sorry I can't remember if it came with screws I think it did or I just use the old ones... Either way the new cap worked out great pretty easy install on my 2001 GMC Sierra V6
Question:	Can I add a doorbell button to this kit to make a combination
Answer:	No it is not a lockup
Question:	We are having trouble in selecting the right song we want. Anyone have any trouble shouting ideas
Answer:	Th350 and th400 have 30 splines.

Product features

Great Safety Feature Especially with Toddlers

If the door or window is opened the alarm goes off.

Works Great for Your Store or Office

This entry alert works great for your shop let know when customers come in and out.

Safer about the old people's living alone

For the old people doors so they can hear people come in.

Doorbell Sensor Chime for Detering Thief

Alerts you if someone tries to open your door.

The tone is very loud. It has 5-Levels Volume & 58 Ringtones.

• The transmitter and receiver will remain paired code if power is removed to the receiver and don't have to reset.
• The remote door sensor chime has strong working signal.

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The Door Sensor Chime Alert System is Expandable

If you need more extra units, you can purchase and add 20 pieces door sensors, plug-in receivers or doorbell buttons from Coolqiya and pair them to work together.

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Easy to Replace Battery and Install the Door Sensor

• Working temperature: 5 ℉ ~140 ℉ (non-waterproof)
• Battery Type: 3V CR 1632 button-cell

• LOUD + ATTENTION GRABBING: High pitched 91 dB sounds when the home alarm is triggered. Loud enough to alert your neighbors, wake you up, and deter would-be thieves
• MAXIMUM SECURITY + VERSATILITY: Stay safe at home and while you travel. Perfect alarm system for front door, bedroom, apartment, dorm, or hotel. Can also use in windows.
• EASY SET-UP: Hold the thin blades together and slide them into the crack between the door and doorframe, loop the cord around the door handle, and set alarm. It’s that simple, even your kids can do it.
• COMPACT + PORTABLE: Perfect hotel door alarm and theft deterrent for your next vacation. Small and weighs less than 2 ounces. Easily fits in your suitcase, briefcase, backpack, laptop bag, or purse
• INCLUDES: Built in LED flashlight, and two button cell batteries. Great additional personal security feature when traveling, in an unfamiliar environment, or when it’s late at night.

User questions & answers

Question:	I need an alarm to use in a condo to prevent my 3 year old from getting out the door at night to go to the pool on vacation.Will this be my best bet
Answer:	Yes! The alarm hangs from the doorknob, but the "magic wand" is inserted between the door and door frame. It doesn't matter whether the door is opened from inside or outside of the door, once the "magic wand" loses connection, a very sharp alarm sounds. There is nothing subtle about the noise that is made! This alarm is great because it doesn't prevent first-aid responders from entering the room (as a door stop does).
Question:	What is the battery life in this alarm
Answer:	This is a typical button cell battery, which normally has a long life. The length of time would depend entirely on use.
Question:	Does the alarm eventually stop on it's own or do you have to turn it off? Thanks
Answer:	I believe you have to plug the metal prongs back in its slot.
Question:	does it just not go off when you take it out
Answer:	Just keep the small blades together when removing it (it is hard to tell by the picture, but the metal part is actually two small prongs). Here is our description that Amazon removed for some reason: : Make security your constant travel companion with the Travel Door Alarm by Belle Hop. This alarm lets off a 91 dB piercing noise - sure to scare off any possible intruders. Two slim silver prongs are attached to the device. These prongs are held together with a clear plastic cover. Slide off the cover (save the cover as youll want to replace it when the alarm is not in use) and the prongs will separate causing a loud alarm to sound. With the cover off while holding the prongs together, slide them into the door frame. As long as the door remains closed the alarm will remain silent. If the door is opened (even a little bit) the alarm will loosen from it's placement causing the prongs to separate and the alarm to sound. Not only is the alarm a great warning to you but is likely to startle and scare off an unsuspecting Intruder. A flashlight is also featured for additional safety and convenience. Perfect for hotel rooms, dorm rooms and apartments for extra protection.

Product description

Features: 

New and high quality 

Super loud 95 dB alarm

Convenience in installation--just peel and stick 

Super environmental suitability and stability 

Dustproof and insect prevention 

Easily mounted by adhesive. 

Type to window or door. 

Ideal entry warning for homes, apartments, mobile homes, do rms, offices, hotel rooms, garages, and more! 

Magnetic sensor switch detects entry protecting your home or office whether you are in or out 

Warning door / window sticker is supplied free in package 

Operated by 3pcs of 1. 5V LR44 / AG 13 button cell ( included ) 

Specifications: 

Sensor type: alarm 

Alarm type: sound 

Material: plastic 

Color: White 

Size: 2.5 x 1.3 x 0.8 inch 

Included: 

5 x Magnetic Sensor 

5 x Magnetic Stick 

15 x LR44 Button Battery

• 100% New and high quality
• Easily mounted by adhesive. Type to window or door. Ideal entry warning for homes,apartments,mobile homes,offices,hotel rooms,garages,and more！
• Magnetic sensor switch detects your door or window.
• Super loud 95 dB alarm.When someone opens the door or window illegally (the relative position of the primary and secondary parts changes), the alarm can issue a strong alarm, warning the intruder to leave and remind the owner
• Super environmental suitability and stability.

User questions & answers

Question:	Do these work for sleepwalkers I know that sounds crazy but seriously I’m in need
Answer:	Been a while since the installation, but it came with two screws to hold the rotor on.
Question:	our daughter sneaks out all the time will this help keep her indoors
Answer:	It fit my 1994 F150 with the 300 cubic inch 6 cylinder. I expect it would fit a 1995 with the same engine. Good luck !
Question:	How can you mount these with door casing, not flush
Answer:	mine came with screws with loctite on the threads.
Question:	Hi, can this be used as a door chime in a business when the door is being constantly opened and closed
Answer:	Aluminum. Additionally, the two screw mounting holes in the cap are pure plastic. The original GM cap came with brass inserts in the screw holes to prevent crushing and cracking. This cap does not have those.

Product description

NOTICE:

The alarm system comes with fully programmed.Before using,please kindly read manual and remove the insulating sheet inside sensors that come with batteries.

There are a video of how to setup detectors FYI:https://youtu.be/V7sYDPtc7Gk.

If you have any question or other need,please email our customer service [email protected] ,we will give you professional reply in time at our work time 6PM~4AM PST,thanks.



Product Features:

1. The horn support up to 30 pcs detectors,8 remote key fob,4 doorbell sensor

2. wireless sensor universal learning.

3. wireless remote control universal learning.

4. the remote control to disarm, fortification.

5. live sound alarm.



Technical parameters:

1: size: L * W * H 12mm * 10.2mm * 11mm

2: Power: AC 110V ~220V

3: the wireless operating frequency: 433MHz

4: the use of the environment: stability: 0 -55 , Relative Humidity: 40% -70%

5: the alarm sound: up to 110 db



Package including:

1 x Host speaker

2 x Wireless PIR detector work with 9V battery

2 x Wireless Remote control work with 23A 12V battery

3 x Wireless Door sensor work with 23A 12V battery

1 x Power supply

1 x English manual

• We offer the newest version siren host from Aug,2020;different from old one is setup guide,PLEASE NOTE an important tips:have to trigger the sensors within 6 seconds during the operation,or need pug in/out again into setting status.DOOR ALARM uses remote control to set security code for arming/disarming;home alarm system complete with fully programmable main unit and sensors,if you want to DIY,please restore factory as manual or operation video,then add them again.
• DIY expandable home burglar security alarm system-this alarm horn support up to 30 pcs wireless detectors,8 remote keyfobs,loud up to 115db deluxe door alarm system for peace of mind.
• Complete DIY wireless house burglar alarm system kits includes a horn and three window/door sensors,two remote controls,two pir motion detectors, loud alarming to protect well for apartment shed hotel garage RV motor home safety ,affordable home security.
• Loud SOS alarm and easy to get help-children and seniors at home in emergency,press the S button of the remote controller,which will trigger the siren alarm up to 115db to notice neighbors or other families in home so that they will get help in time.
• After sale service- Kindly refer the user manual before usage,if you have any issues or need to customize alarm system kit,please feel free to contact us in our shop,we will try our best to help you out soon;the alarm system kit can compatible with KERUI brand another type alarm hub,DIY complete alarm system as your need.

User questions & answers

Question:	Where do you get new batteries and whats the cost
Answer:	Hi friend, Except the horn working with power adapter, motion sensor works with 9V 6F22 battery while door sensor and remote work with 23A 12V battery, you can get them on the internet/shop. Thanks.
Question:	Can i purchase two kits and connect four motion detectors to one alarm
Answer:	Hi friend, Yes, you can. This KERUI standalone siren can add 8 remote control,30 motion sensors and 4 doorbells for maximum.
Question:	Hub advert price
Answer:	no
Question:	Is it possible to add more than one siren
Answer:	Hi friend, Do you want to add one more siren the same type as the picture? If yes, it is able to do that, you just need to pair all accessories with two sirens first, then when any sensor is triggered, the two sirens will alarm and you can use the same remote control to control the two sirens. Thanks.

Product features

DIY More Accessories or Alarm Host of KERUI Brand as your need

• The black siren host H01 support up to 30 wireless sensors, 8 remote controls and 10 wireless doorbell buttons.
• Same set sensors can work with more another type live sound alarm hosts ;or live sound standalone alarm system can compatible with smart app control alarm host consist of smart alarm system,the wifi smart plug can control the host's power adapter or other electronic equipment from anywhere via wifi or data;720P wifi camera, two-way audio and real monitor 24/7 from anywhere,anytime via wifi or data;diy alarm system as your need.

Simple,Cheap,Effective Alarm System Wide Application

An inexpensive and simple intruder alarm perfect for when you only want the alarm to sound in your home,small enough to pack in a suitcase that could be moved from location to location without much difficulty,easy portable alarm system;there is no network capability,no need GSM 3G/4G & WIFI home alarm system,if you need emergency services for help,press the S button of remote control,which is the panic button, will sound the alarm at once.The burglar security alarm system is suitable for sheds,garage,barn,shop,yard shed,single story apartment or home,cabin,motorhome,chicken coop,any small room you want to protect.

KERUI P815 Motion Sensor

• Powered by 1PCS 9V 6F22 battery(included),two screws fixed the PIR to the wall,recommend install 2 meter height,the normal motion sensor can detect 19 to 26 feet, a vertical angle of 60 degrees and a horizontal angle of 110 degrees,you can adjust it to avoid false alarms.
• It without waterproof function,suitable for indoor,the battery normally can last 3~4 months,the battery life is also related to the number of times you use it.
• When motion sensor no red light or can't trigger the host,please change new battery.

KERUI D022 Door Sensor

• Powered by 23A 12V battery(included),sticky pads fixed the two door/window sensors,when the sensor window is open more than 1mm (0.03 inch), the detector will send signal to alarm host that will sound at immediately.
• Please note the low voltage indicator on the sensor（the second indicateor light）that mean need to change new battery.

KERUI RC527 Remote Control

• The remotes have sliding covers over the buttons to prevent accidental activation,without waterproof function,powered by 23A 12V battery(included).
• When the work distance is lessen mean the battery is run out need to change new one.

• ✅WIRELESS SECURITY SYSTEM - A smart way to protect your house with tolviviov Smart Home Security System. 8-piece kit includes the 1 alarm siren station, 5 windows & door sensors and 2 remote controls. No contracts and No subscription fee.
• ✅SMART ALARM SYSTEM for Home - tolviviov Alarm Security System is an affordable solution for your apartment security. You have full control over the door alarms for home security through your smartphone Smart Life App and get instant notifications of alarms alert in your house or apartment.
• ✅CUSTOMIZATION - You can add extra door and window sensors, motion detectors, wireless doorbell, and water detectors to different rooms in your home security systems;It supports expansion of up to 20 sensors and 5 remote controls/keypads, which can be added to the WiFi alarm station.
• ✅DIY INSTALLATION - Easily set up tolviviov Wireless Home Security System in minutes without tools. The wireless connection devices does not damage the wall. The alarm station should ALWAYS CONNECT to AC adapter. The backup battery works for 8 hours, only as an emergency battery.
• ✅VOICE CONTROL and WIFI Network - Your tolviviov Home Alarm System can be easily controlled by Away, Disarm, and Home modes with your voice. Works with Alexa and Google Assistant. WIFI connection, Only works on 2.4GHz WiFi network, does NOT support 5GHz WiFi networks.

User questions & answers

Question:	Does this integrate with a smart lock? E.g. I get home and unlock my smart lock and it also disarms this security system
Answer:	Yes. All Alarm sensors are dually compatible with both generations of Ring Alarm.
Question:	How do you turn off the beeping sound every time a door opens? I've muted the alarm, but that doesn't mute the beep every time I open a door
Answer:	You can change the sensitively setting depending on what set up you have. On the motion sensor I lowered the sensitivity since I also have a cat. Didn't want her setting it off all the time
Question:	Can these be shut off by sneaky teenagers without the remote or my phone
Answer:	If you are home, motion sensors are disabled. If you are away, you can lower the sensitivity of the motion sensors so that it will not pick up your pets.
Question:	I want to receive sms notifications and phone notifications. where should i set them
Answer:	The echo shoe 5 does not need batteries. This is a plug for the other item listed.

Product features

Your Family and Property--ALL WE PROTECT !!!

Protect your home from the inside to the outside, and get an alarm when the door or window is opened. The whole alarm system can be installed and set up by yourself. Simple step-by-step instructions and a life-long tolviviov support allows you to enjoy tolviviov home alarm system within minutes. No professional is required. Do it yourself.

Remote Control

The remote monitor function allows you to check the status of your home security system anytime, anywhere with the free smart life app.

Even you are in traveling.Always bring peace of your mind and protect your family and property.

Share with Family

You can share this home security system by adding your family's mobile phone number or email address.your can track all the record and will never miss anything important.

SOS Function

Alarm features a SOS Alarm just in case an

emergency occurs while you’re at home.

To trigger it, press the lightning button on the

Key Fob, or tap SOS in the Smart Life app.

House or Apartment

Garage

Garden Shed

Office

Troubleshooting (Sensors or Remotes NOT working properly)

• Deleting all sensors, remote control: Long press the set button 6 seconds.You'll you hear the 5 beeping sound in all (2 beeping sound and 3 beeping sound)

• Reset Wi-Fi: Long press the set button 11 seconds ,You'll you hear the 10 beeping sound in all (2 beeping sounds, 3 beeping sounds and 5 beeping sounds)

Wi-Fi Setting with smartphone

• Long press the SET button for 5 seconds, release the SET button when you hear 2 beeping sounds, now the base station has entered the Wi-Fi connection mode, the Red light is slowly blinking (2s/time).
• Please change the EZ mode in the upper right corner to AP mode.
• Make sure the host is plugged in and the red light is slowly blinking.
• Only 2.4G Wi-Fi supported, NOT 5G Wi-Fi.

Pairing Remote Control

• PRESS SET button 1 time, then 1 beeping sound will be heard, Enter Remote Control pairing mode.

• PRESS any button of Remote Control, 1 beeping sound will be heard as a confirmation.

Pairing Contact Sensor & Motion Sensor

• PRESS SET button 2 times, then 1 beeping sound will be heard, Enter Contact Sensor & Motion Sensor pairing mode.

• Separate the Contact Sensor or Wave your hand in front of the Motion Sensor, 1 beeping sound will be heard as a confirmation.

Product description

Product description：

Power supply : 110～230VAC (input) 5V/1. 0A (output)

Backup battery : 3.7V/500 mAh

Standby current : ≤80uA

Signal current : ≤500mA

Working Current:≤8120mA

GSM network communication frequency 850/900/1800/1900mHz Support GSM network: 2G

FIFI standard IEEE802.11b/g/n wireless standard

Working temperature : -10℃-60℃

Working humidity: ≦95%

Wireless frequency: 433MHz

Built-in alarm siren: ≥85dB

Transmission outdoor wireless power : 10±14dB

Alarm transmission : FIFI+GSM transport

9 languages, Chinese, English, German, Korean, Spanish, Portuguese, French, Italian, Russian (default English).

Single weight: 2.42 Pounds

Host size: 16.3*4.72*0.49 IN

Packing size: 9.49*2.95*5.55 In

Package Inhalt:

1*2.4-inch TFT full-color LCD screen

6*Wifi Door Sensor

2*Detector

4*Remote control

1*Doorbell

1*SOS

with other Settings and needed Cable

• Touch Panel Design - 2.4-inch TFT color Touch Screen display.Easy operating and install, simple style man-machine interface and menu guide design. Date clock real-time display, host status at a glance. Support multi-language menu display, voice operation prompts and alarm SMS settings,ual horn alarm design.
• Home WIFI / GSM / 2G / GPRS Real-time monitoring alarm - Support APP push, SOS, SMS, Voice monitoring, alarm center networking.Real-time monitoring of family dynamics, high decibel live alarm through the host timely send SMS notification. You can also remote control home sensors setting, easily to remote arm/disarm all sensors.
• Multi-zone location settings - Support the main door, hall, distress, bedroom, window, balcony, perimeter, smoke, gas, carbon monoxide, water leakage, doorbell, PIR detector, door sensor detector, water leakage, power failure etc zone name settings. Diffent zone type settings:outgoing zone, stay-behind defense, doorbell, silent defense, 24-hour defense zone, etc.
• One machine two networks - Support WIFI/GSM/GPRS/2G. Free mobile app for iPhone and Android phones so you can control your system from anywhere with your smartphone.Also complait with Amazon Alexa., uninterrupted network, safer and more assured.
• Phone Call Support and Support Android iOS System - One-key SOS secret call for help and alarm; support duress code, can make a secret call to alarm in emergency situations (the default alarm sound, can be set),what gives the elder and children more safety. Support 5 groups preset alarm phone number and SMS numbers, if alarm occurs, it will dial preset number automatically.

Product description

Of the 126 million homes in America, only 20% have home security. At Simplisafe, we're changing that. Our goa is simple: to make homes safe for everyone, and not with false security, but with real protection. Our frustration-free DIY home surveillance system bundles have precise sensors to know the difference between a family pet and an unwanted intruder, and are designed with long range sensors for entire home protection. Simplisafe is for homes of all sizes and is built with unprecedented safeguards to keep your home protected against power outages, downed Wi-Fi, cut landlines, and physical attacks from hammers, bats, and more. This easy-to-use wireless system is full of surveillance products small enough to disappear into your home and provide blanket protection. Breathe easy with proper protection at a safe and reasonable price. The 9-piece wireless Security bundle provides 24/7 security with a smash safe keypad that is soft to touch, easy to use during the day and night, and requires no plug (meaning you can place it anywhere), and will alert the police in case of attack. The base station is like your personal security guard: It sends alarm signals to the monitoring center with a built-in cellular connection, 24-hour battery backup, and a 95dB siren. Each entry sensor (4 total) protects your doors and windows and is designed to disappear and blend into the background. The 2 motion sensors are designed for human detection, no pet detection. The simplicity gives you flawless HD video and audio streaming as well as a 120° field of vision day and night. Enjoy effective, contract-free 24/7 professional monitoring, and make sure your home is the safest place on earth.

• Ready to protect right out of the box. Just plug in the base station, place your sensors, plug in your Simplicam and start protecting your home in minutes - no tools required.
• Optional 24/7 professional monitoring and cloud recording with police, fire & medical dispatch starting at 50c/day - No contracts (SimpliSafe products and professional monitoring services are only offered for sale and supported in the US)
• Sound the alarm. Pioneering signal burst technology that is powerful enough to cover homes of every size, with up to 1000 ft. range -- no extender needed.
• The SimpliCam security camera lets you see what’s happening at home anytime from your phone, tablet or computer and comes with a built-in stainless steel shutter for complete control over privacy.
• Motion sensors detect motion within 30 feet, has a 90 degree field of vision and gets along great with pets under 50lbs. Perfect for full range coverage when placed in a corner.
• Backups for your backups. 24 hour battery and dual WiFI & cellular connections to keep your home secure and protected from the unexpected.
• We've got you covered - customize your SimpliSafe security system with additional sensors for whole home protection - up to 100!

User questions & answers

Question:	If there is no internet or cell phone signal will it still work
Answer:	The tower is its own tower. It will still work. I did not have internet when I first got the Simplisafe Original and it still dispatched the police to my location. You will need internet for the camera to work though. The system itself does not need internet or a telephone connection.
Question:	Is this considered version
Answer:	This is the All New SimpliSafe system. The previous generation is the SimpliSafe Original.
Question:	Does Simply Safe come with a video monitor that can be stationed on a counter to be viewed from inside the home, instead of the app on your phone
Answer:	Unfortunately they do not have a seperate monitor. But if you have tablet, you can download the app, and use it as your monitor.
Question:	Does it keep a event log of who comes and go
Answer:	With active Monitoring, your system will send signals to your Timeline event log online. You'll be able to see exact timestamps for alarms and errors, as well as activity - arms and disarms!

• We offer the newest version siren host from Aug,2020;different from old one is setup guide,PLEASE NOTE an important tips:have to trigger the sensors within 6 seconds during the operation,or need pug in/out again into setting status.DOOR ALARM uses remote control to set security code for arming/disarming;home alarm system complete with fully programmable main unit and sensors,if you want to DIY,please restore factory as manual or operation video,then add them again.
• DIY expandable home burglar security alarm system-this alarm horn support up to 30 pcs wireless detectors,8 remote keyfobs,loud up to 115db deluxe door alarm system for peace of mind.
• Complete DIY wireless house burglar alarm system kits includes a horn and three window/door sensors,two remote controls,two pir motion detectors, loud alarming to protect well for apartment shed hotel garage RV motor home safety ,affordable home security.
• Loud SOS alarm and easy to get help-children and seniors at home in emergency,press the S button of the remote controller,which will trigger the siren alarm up to 115db to notice neighbors or other families in home so that they will get help in time.
• After sale service- Kindly refer the user manual before usage,if you have any issues or need to customize alarm system kit,please feel free to contact us in our shop,we will try our best to help you out soon;the alarm system kit can compatible with KERUI brand another type alarm hub,DIY complete alarm system as your need.

User questions & answers

Question:	Does this system really require 220 volts to operate as stated
Answer:	This is an Adjustable Mounting Wedge for our AD110 Doorbell Camera. Amcrest Team
Question:	Is there an extension cord available for the alarm? The alarm will be set up outdoor on a tree and need a 50-60 foot power cord extension
Answer:	A hard impact plastic. Amcrest Team
Question:	Can I add a strobe light to this system
Answer:	The base will mount to the wall and the AD110 will fasten into the wedge. Amcrest Team
Question:	Once the alarm stops after two minutes, does the system resets itself to continue the protection
Answer:	No

Product features

DIY More Accessories or Alarm Host of KERUI Brand as your need

• The black siren host H01 support up to 30 wireless sensors, 8 remote controls and 10 wireless doorbell buttons.
• Same set sensors can work with more another type live sound alarm hosts ;or live sound standalone alarm system can compatible with smart app control alarm host consist of smart alarm system,the wifi smart plug can control the host's power adapter or other electronic equipment from anywhere via wifi or data;720P wifi camera, two-way audio and real monitor 24/7 from anywhere,anytime via wifi or data;diy alarm system as your need.

Simple,Cheap,Effective Alarm System Wide Application

An inexpensive and simple intruder alarm perfect for when you only want the alarm to sound in your home,small enough to pack in a suitcase that could be moved from location to location without much difficulty,easy portable alarm system;there is no network capability,no need GSM 3G/4G & WIFI home alarm system,if you need emergency services for help,press the S button of remote control,which is the panic button, will sound the alarm at once.The burglar security alarm system is suitable for sheds,garage,barn,shop,yard shed,single story apartment or home,cabin,motorhome,chicken coop,any small room you want to protect.

KERUI P815 Motion Sensor

• Powered by 1PCS 9V 6F22 battery(included),two screws fixed the PIR to the wall,recommend install 2 meter height,the normal motion sensor can detect 19 to 26 feet, a vertical angle of 60 degrees and a horizontal angle of 110 degrees,you can adjust it to avoid false alarms.
• It without waterproof function,suitable for indoor,the battery normally can last 3~4 months,the battery life is also related to the number of times you use it.
• When motion sensor no red light or can't trigger the host,please change new battery.

KERUI D022 Door Sensor

• Powered by 23A 12V battery(included),sticky pads fixed the two door/window sensors,when the sensor window is open more than 1mm (0.03 inch), the detector will send signal to alarm host that will sound at immediately.
• Please note the low voltage indicator on the sensor（the second indicateor light）that mean need to change new battery.

KERUI RC527 Remote Control

• The remotes have sliding covers over the buttons to prevent accidental activation,without waterproof function,powered by 23A 12V battery(included).
• When the work distance is lessen mean the battery is run out need to change new one.