Best Alarm detector

BESTOONE Motion Sensor Alarm, Long Range Wireless Driveway Alarm, Indoor Home Security System Electric Doorbells, 2 Motion Detector and 1 Alarm, 38 Chime Tunes, LED Indicator

【 Long-range Wireless】The longest distance the signal from the motion sensor can be transmitted to the receiver is 300 feet, and the motion detector infrared detection distance is about 20 feet. Convenient for you to install in various locations of your house to give your family security..
【Wide Use】This motion detection alarm system can be used as a doorbell, garage alarm, intruder warning, burglar warning, wildlife warning, child elderly care alarm, etc. It can be installed at the front door, window frame, driveway, walkway, and anywhere in your home where you want an early warning..
【3 volume and 38 bells】The alarm have two alarm signals: LED light and bell. There are 38 ringtones to choose from and three levels of volume, medium, high and low, if you want quiet, you can choose the silent mode, only LED warning, no sudden sound to scare your family..
【Avoid false alarms】 - Do not place the detector where the wind will make it active. For optimal performance, try to keep the detection range of the motion detector free of obstructions, such as trees. This motion detector is not waterproof, so please avoid the rain for installation..
【You can get】2pcs motion detector (need AAA battery,not included), 1pcs alarm, 2 sets o....

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BESTOONE Motion Sensor Alarm, Long Range Wireless Driveway Alarm, Indoor Home Security System Electric Doorbells, 4 Motion Detector and 2 Alarm, 38 Chime Tunes, LED Indicator

【 Long-range Wireless】The longest distance the signal from the motion sensor can be transmitted to the receiver is 300 feet, and the motion detector infrared detection distance is about 20 feet. Convenient for you to install in various locations of your house to give your family security..
【Wide Use】This motion detection alarm system can be used as a doorbell, garage alarm, intruder warning, burglar warning, wildlife warning, child elderly care alarm, etc. It can be installed at the front door, window frame, driveway, walkway, and anywhere in your home where you want an early warning..
【3 volume and 38 bells】The alarm have two alarm signals: LED light and bell. There are 38 ringtones to choose from and three levels of volume, medium, high and low, if you want quiet, you can choose the silent mode, only LED warning, no sudden sound to scare your family..
【Avoid false alarms】 - Do not place the detector where the wind will make it active. For optimal performance, try to keep the detection range of the motion detector free of obstructions, such as trees. This motion detector is not waterproof, so please avoid the rain for installation..
【You can get】4pcs motion detector (need AAA battery,not included), 2pcs alarm, 4 sets o....

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Handheld Geiger Counter Nuclear Radiation Detector, High Accuracy Beta Gamma X-ray Nuclear Radiation Dosimeter, Portable Radiation Monitor with LCD Display

【High Accuracy】This Nuclear Radiation Detector built-in GM sensors, fast response and high accurate. Wide measurement range and long service life Hersance. Gamma, Beta and X-rays radiation detector, measure range: 0.00~100usv/h..
【Portable & Compact Design】The geiger counter radiation detector is handheld and portable, with a simple and easy-to-understand interface. With three measurement units, large LCD screen allows you to read the real-time values easily and quickly..
【Smart Alarm】The radiation detector can set the cumulative alarm value and the dose rate alarm value. You can enter the alarm setting option to set, once the radiation value exceeds the set value, it will automatically alarm, helpful to avoid radiation risks in daily life..
【Wide Application】This radiation detection meter can be widely used in home improvement radiation testing, irradiation processing enterprises, laboratories, geological surveys, nuclear power plants, industry, radiation medicine, radioactive laboratory, and etc, where ionizing radiation exists..

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Hidden Camera Detector Mini LED Hidden Device Detector with Infrared Viewfinders Rechargeable Anti Spy Camera Detector GPS Wireless Signal Detector Finder Anti-Thief Vibration Alarm

【Detector Protects Your Privacy】 This excellent anti spy camera detector allows you to get far away from being wiretapping and videotaping from....
【Infrared Hidden Camera Detector】 You can use the infrared scanning detection technology that 8 flashing red led lights of detector can quickly....
【Signal Hidden Device Detector】 Our professional radio frequency detector can help detect listening devices for spying, jammers, bug devices by....
【Built-in Anti-thief Vibration Alarm】 On the vibration alarm mode, it will set off lound alarm and 8 red led lights will flash when it detects any....
【Mini Awesome Security Detector】 Designed with the pocket size 3.3*1.46*0.7 inch and weights 0.11oz makes it easy to carry anytime anywhere as the....

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Natural Gas Detector, Propane Detectors for Home Natural Gas, Gas Leak Detector, High Sensitivity Propane Detector for Home, Natural Gas Leak Alarm Monitor Sensor (1)

Detect Multiple Gases: Home natural gas detector suitable for detecting LPG, natural gas, coal gas, gas fuel, artificial gas, liquefied petroleum gas, liquefied natural gas etc..
Play Voice & Sound Alarm: 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..
Widely Applied: The gas detector 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..
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..
Notice: 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..

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3 Pack Combination Smoke and Carbon Monoxide Detector Alarm Digital Display for Travel Home Bedroom and Kitchen 9V Battery Operated White YJ-00903

2 in 1 smoke detector/carbon monoxide alarm, well used in the place of carbon monoxide gas leakage and fire place, well guarantee personal safety..
Understand the surrounding environment in real time - smoke detector and carbon monoxide detector Indicator lights on the face of the unit display the presence of smoke or carbon monoxide..
When carbon monoxide and smoke rise to alarm levels, the 85 dB alarm provides a clear, loud warning when it is discovered..
Dual high stability sensors- Minimize carbon monoxide and smoke detector alarm false positive..
Battery operated device Can be easily installed and maintained without the need for an electrician..

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Natural Gas Detector, Plug-in Digital Gas Leak Detector, Portable Home Gas Alarm, High Sensitivity LPG LNG Coal Natural Gas Leak Detector, Alarm Monitor Sensor for Home/Kitchen (1)

Multiple Gas Detection- Home gas detector suitable for detecting LPG(Methane), natural gas, coal gas etc..
Keep Safty - When gas leak exceed the standard, this alarm will sound an 85dB siren speaking voice with top flashing red light until the ambient gas volume falls below alarm set point. Reduce the risk of gas explosion and protect your family's life and property safety..
Sensitive - This gas detector adopts advanced gas sensor, sensitively sense gas leaks, digital displays real-time gas concentration, which tell you how much the leakage is. When gas leak concentration indoor reaches the presetting level, the alarm provides a visual and audible signal..
Easy Installation - Gas leak detector adopts Easy-to-install Design, can be used by plugging directly into the power socket to detect leaked gas..
Widely Application -This natural gas detector 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 etc..

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Kidde Smoke & Carbon Monoxide Detector, Hardwired Interconnect, Combination Smoke & CO Alarm with Battery Backup, Voice Alerts, Contractor 6 Pack

This First Alert combo pack will help keep you and your family safe.
it includes one First Alert carbon monoxide alarm and one First Alert smoke alarm, and both are battery-operated for continuous monitoring, even during a power outage.
Carbon monoxide detector features electrochemical sensing technology to detect leaks from multiple sources.
smoke alarm uses an ultra-reliable ionization sensor to provide the earliest possible warning of a fast-flaming fire.
Both the smoke alarm and carbon monoxide detector feature a loud 85-decibel alarm, a single test/silence button, and an end-of-life signal so you know when to replace the unit.
each unit operates with one 9-volt battery, and is UL listed.
Smoke alarm features a low battery alert, a missing battery guard, a side battery drawer that slides open for easy battery replacement, a blinking power indicator, and an optional pin to lock the battery and unit in place for tamper resistance, plus offers a 10 year limited.
carbon monoxide detector offers a 5 year limited.
To ensure complete protection make sure to place one carbon monoxide detector on each level of your home and in each bedroom.

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SITERLINK Smoke Detectors 10-Year Battery Operated, Photoelectric Sensor Smoke Alarm with Test-Silence Button, UL Listed Fire Alarms Smoke Detectors with LED Lights for Home, GS526A (4 Pack)

Test Button & Low Battery Signal: The smoke alarm is easily to test by pressing the button more than 5 seconds. If low battery there will be a signal alarm,which will recall you to change a new battery,then the smoke detectors will work as usual..
Safety Clip Feature: The photoelectric smoke detectors are not allowed mounting without battery install,so don't worry about the fire risk if you forget the battery..
Easy Install & Replacement Battery: The smoke detector is 9V battery operated,which can be quickly replaced.There 2 expansion screws in the box to help you install the alarm..
10 Years Life Time: The smoke alarm have 10-year long life(Not the battery life time) with loudly alarm(Loud003e85dB) alarm signal at 3 meters,to make the room person can hear the alarm clearly when the smoke alarm is chirping,There will be enough time to leave from the dangerous..
Home Protection: Working smoke detector cut the risk of dying in a home fire by 50%, and that's important because a home fire starts every 83 seconds! The faster you realize a fire warning,the more time you can escape from the fire..

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