Reviews Detector Alarm System

Wireless Live Loud Siren Security Home Alarm System DIY Kit,Fuers AS301 Adjustable Volume Horn up to 110dB Come with Door Contact Sensor,Montion Detector for Home Business Garage

  • Remote Control - The loud horn via remote key fobs to control,arm/disarm/SOS and other function settings can be finished on the remotes.
  • Securiy System Set - The intrude alarm system comes with fully programmed.Door/window sensor detect any forceful break-in,motion sensor detect any....
  • Adjustable Volume and Alarm Time- The alarm volume and alarm time can be adjusted via "S"button on the remote controls to meet the user's different....
  • Feature - The wireless loudspeaker support up to 32 wireless sensors(motion sensor,door/window sensor/smoker detector/water leakage detector etc),also....
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Dahszhi Dual Laser Detector Alarm Beam Sensor Indoor 300m Outdoor 60m Infrared Detector 6.7"x3.1"

  • ...ms provide reliable perimeter security, minimizing false alarms from falling leaves, birds, etc. Lensed optics reinforces beam strength & provides excellent immunity to false alarms due to rain, snow, mist, etc..
  • Principle: This is Alarm Two Beam photoelectric infrared detector ABT- 60m. Install them at the opposite positions. Then there is a infrared area between these two detector parts. When someone passes the infrared region for an adjusted response time, the detector will send alarm signal to the security alarm host (which not included here) work with 2pcs power apater..
  • Powerful Function: Holographic spot real-time report. Unique displacing receiving, transmitting parts with big power. Full function checking, self-adaption in environment and trouble locking..
  • Durable: Powerful Automatic Adjustment Design-The transmit power will be adjusted automatically according to the environmental conditions, which greatly extends the life of the launching tube, while lowering power consumption..
  • Scope of Application: Great to be installed for security system in school, office building....
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Humdax Geiger Counter Nuclear Radiation Detector with LCD Display, High Accuracy Beta Gamma X-ray Nuclear Radiation Dosimeter, Rechargeable Radiation Monitor Meter

  • HANDHELD NUCLEAR RADIATION DETECTOR: Humdax geiger counter with built-in GM sensors, fast response and high accurate. Gamma, Beta and X-rays radiation detector,measure range: 0.05uSv-50mSv,Measure precision: -17%…+25% based on 137Csy.
  • TWO MEASURING METHODS: Real-time measure and timing measurement function, you can set the “Measurement Time” range from 0 to 999 hours. The Geiger counter also can be save the historical record of the recent 10 timing measurement.
  • SMART ALARM: Enter the option of alarm setting to set the alarm value of dosage rate.When the radiation value exceeds the set value, the nuclear radiation dosimeter will alarm automatically with loud audible alert and screen flashing.If the detector screen is in sleep, detects the radiation dosage exceeding the alarm threshold value, the radiation monitor will automatically alarm.
  • MULTIFUNCTIONAL GEIGER COUNTER: Our the geiger counter has other various setting, such as delete setting, sound setting, system clock setting, sleep setting and unit setting & language change,you can operate in English (default) or Chinese. Easy one-handed operation.
  • APPLICATION AREAS: Widely applied in the environment where existing ionize radiation. Such as home improvement radiation, geological survey, iron....
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Motion Sensor Alarm Indoor, Wireless Infrared Motion Detector Alarm Outdoor with Siren Light/Remote Control(125DB, Battery), Portable Home Security Door Chime/Alert System for Car Garage, Shop

  • ...on technology and intelligent analysis algorithms, which can effectively distinguish interference signals and human movement signals to prevent false alarms. The unique sliding cover design of the remote control fully fits people's needs, preventing accidental touches..
  • TWO Modes & TWO Power Supply Modes: The motion detector alarm has TWO Modes (Doorbell mode / Alarm mode). The motion alarm has Two power supply modes (3*AAA batteries or micro USB). The environmentally friendly design concept that can be powered by a USB data cable solves your worries when there is no battery or the battery is out of power..
  • Protect Your Home Security: Small equipment, Adequate protection! The PIR motion detector has a 16-26ft infrared detection range, a remote control distance of up to 328ft in open areas, max 125dB siren. This complete stand-alone motion sensor-based alarm system will well protect your Shed, Kitchen, Room, Boat, Garage, etc..
  • Easy to Install & DIY: This indoor wireless alarm system is fully-expandable, you can link multiple remote controls or sensors from RISWOND Home Alarm System, simple installation and is easy to use. Our burglar alarm can be used at home or taken with you..
  • Professional Worry-Free Warranty: RISWOND home security motion sensors can p....
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Motion Sensor Alarm,SanJie Wireless Infrared Indoor Security System for Home Office Warehouse PIR Motion Detector Alert 110dB ,5 Alert Ringtone ,4 Alert Modes,with Remote Control(1 Pack)

  • Wireless & Easy Installation: Wireless motion sensor alarm helps you save the trouble of wire installation. Just mount anywhere you want. Protect your house from trespassing. Keep your child away from window. Fall detector for the elderly..
  • Motion Activated: The movement detector comes with sensitive motion detection will detect any movement within 5-8 meter. If your yard is frequently invaded by animals such as wild cat or dog. This motion detector also suitable for animals..
  • High-Decibel Alarm: The siren alarm has 5 kinds of ringtones for your choices. 5 levels volume adjustable from 0db to 110db(last for 30s). Loud enough to scare away intruders. Built-in large-capacity rechargeable batteries, after fully charged, it can keep working 30 days..
  • Multiple Alert Mode: The indoor security alarm system has 2 modes, 24-hour mode and night mode(only work at night). You can set the sound and light alarm or just flash the light when an intruder is caught. The included remote can change modes, manually sound the alarm, and disarm the alarm..
  • Satisfactory After-Sales Service:Amazon Logistics is our partner, we can quickly deliver the package to your home within 1-2 days, we provide a 30-day refund service. If there are quality problems with the products, ple....
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SITERWELL Smoke Detector Carbon Monoxide Detector Combo with Voice Speaker, Dual Sensor Fire and CO Alarm with LED Light & Test Button, Battery Operated, Auto-Check, UL 217 & UL 2034 Standards, 1 Pack

  • Unique Voice Speaker - Unique smoke detector and CO detector alarms distinguish between smoke alarms and CO warnings. Co alarm: "Warning, carbon monoxide, evacuate! Smoke alarm: "Fire!" . Verbal warning system reduces confusion and helps people maintain order..
  • Reduced Cooking Nutrition Alert - This smoke and carbon monoxide detector uses photoelectric smoke sensing technology to quickly detect slow burns. It is suitable for many locations, especially in cooking areas, to reduce false alarms of cooking smoke..
  • Not Disturb Mode - With SITERWELL fire and CO detectors, you don't have to worry about your rest. In low voltage or fault mode, simply press the button and the alarm clock will go into non-disruptive mode, avoiding nighttime alarms and frequent flashes, and you can enjoy approximately 10 hours of silence..
  • Self Check Function - The smoke detector carbon monoxide detector combination replaces the manual daily test and automatically checks the batteries and sensors every 80 seconds to ensure they are working properly. You'll be alerted when a malfunction occurs..
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Geiger Counter Nuclear Radiation Detector - FNIRSI Radiation Dosimeter with LCD Display Portable Handheld Beta Gamma X-ray Rechargeable Radiation Monitor Meter 5 Dosage Units Switched

  • 【Nuclear Radiation Detector】FNIRSI GC-01 Geiger counter nuclear radiation detector with built-in GM sensor, fast response time and high accuracy, able to detect Gamma, Beta and X-rays. Cumulative dose equivalent: 0.00uSv-500.0mSv. Energy range: 48KeV-1.5MeV ≤ ± 30%（for 137Csγ).
  • 【Smart Alarm】Enter the alarm setting option to set the current dose alarm value and the accumulated dose alarm value. Whether the detector screen is in sleep state or in operation,the radiation dose detected exceeds the alarm threshold,the radiation monitor will automatically alarm. Light/Vibration/Sound 3 combined alarm modes to choose..
  • 【Multifunctional Geiger Counter】Our the geiger counter has other various setting, such as alarm setting, system clock setting and unit setting & language change,you can operate in English (default) or Chinese. Easy one-handed operation..
  • 【Working Principle】FNIRSI GC-01 uses a Geiger-Miller counter.Counter for detecting the intensity of ionizing radiation (Beta particles, Gamma rays and x-rays).Use a gas tube or a small chamber as a probe.When the voltage applied to the probe reaches a certain range.Each time the ray is ionized in the tube to produce a pair of ions, it can be amplified to produce an electric pulse of the....
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Gas Leak Detector, TopTes PT199 Natural Gas Detector with Audible & Visual Alarm, Portable Gas Sniffer to Locate Combustible Gas Leak Sources Like Methane, Propane for Home(Includes Battery x2)-Orange

  • 【Combustible Gas Leak Detector】The TopTes PT199 is suitable for LPG, methane, ethane, propane, butane, natural gas, coal gas, gas fuel, liquefied natural gas, etc., and it will exactly pinpoint a leak, reducing the risk of gas explosion and keeping your family and property safe.
  • 【Visual & Audio Gas Alarm】The gas detector employs both visual alarm and audible alarm as fast as 0.5 seconds of detection. When the bar graph increases and the detector beeps, you know gas has been detected. The alarm increases with the amount of gas, and the LCD screen will turn red when the gas concentration is high.
  • 【Batteries Included & Easy to Use】The TopTes PT199 comes with 2x AAA Alkaline Batteries, so you will be able to set the detector up and have it ready as soon as you receive it. The system warm-up time is about 30 seconds. The low battery indicator will engage when battery voltage is below 2.4V. Automatic power off after 5 minutes without operation or gas detection.
  • 【Compact Design】Pocket-sized with a pen hook that allows you to carry it in your shirt pocket. The non-slip texture and material make it easy to hold. With included storage bag, the natural gas detector is also easy to store. It is a great tool for RV-ers, DIY-ers, homeowners with gas ....
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Propane Natural Digital Gas Detector, Gas Leak Detection, Home Gas Alarm, Plug-in Digital Gas Alarmer, High Sensitivity LPG LNG Coal Natural Gas Leak Detection, Alarm Monitor Sensor for Home Kitchen

  • 【Suit for Multiple Gas Leak Detection】: Eksahol propane gas detectors are suitable for detecting LPG(Propane and Methane), natural gas, coal gas, gas fuel, artificial gas, liquefied petroleum gas, liquefied natural gas, etc..
  • 【Suit for Multiple Scenes】: Eksahol natural gas detectors can be used as independent family alarm equipment, and also can be used as the front sensor of the alarm system. Widely Used for Restaurant, Hospital, Hotel, Oil Factory, Garage, Gas Station, etc..
  • 【Powerful Quality & Functionality】: Natural gas detector adopting high-quality semiconductor calefaction type sensor. Gas leak detector visual and audible alarm function MCU intelligent. When the gas alarm detects a gas leak, the LED display concentration changes, and an alarm of 85 dB or more issues..
  • 【Easy to Install】: Gas leak sniffer adopts Easy-to-install Design, can be used by plugging directly into the power socket to detect leaked gas..
  • 【Warm Tips】: 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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