door alarm sensor

 GAS / LPG Wireless Alarm Sensor , Fire Alarm Na

dual cpu parking sensor system
8 sensors are avaliable
high quality and best service
fast delivery and avaliable warranty
bibibibi buzzer alarm

Material: ABS+ Acrylic Charger: Yes
Compatile For: Andriod Phone, Appple Iphone, Tablets Ipad Alarm: Yes
Operation: Remote Control

voice remind function, can be customized different warning voice
pet prevention technique of digital analysis

Features
• High stability optical chamber
• Circular LED indicator for 360° visibility
• Network by current, NONC optional

Fire Alarm Linkage Windows Controller
Linkage with the fire alarm signal it can exhaust smoke in time when the fire broke out.

 
Grey 22awg, 

Automatic door photocell infrared orientable photocells Battery type wireless opening detecting sensor with low voltage alarm function

 
Temperature Sensor GPRS Automotive 3G GPS Tracker Emergency Alarm
 
 
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Customer Guidance Automatic sliding security gates for Supermarket
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Kitchen wireless smoke Detectors Photoeclectric Sensor Sound Alarm
 
 ...

Best for wide distance
Super digital scanning
Digital self-checking
Excellent environment adaptability

Supermarket Golf Magnetic Sensor Detacher RF Hard Tag With Security Alarm
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Electronic Display Sensor,Mouse Sensor ,Self Alarm with Mouse Sensor End/loop sensor end,Alarm device use for electronic exhibits,Burglar Alarm Device

Digital LED showing obstacle distance
Alarm by Bi-Bi sound
LED display with three colors (red, yellow and green)
Crescent shape digital display scr

Alarm, sensors, anti-theft alarm. Smoke alarm

Intelligent Wireless Gsm Alarm Systems With Pir Sensor, 2 Remote Controllers Cdma Gsm Home Alarm System<

 
Security Secure Alert Device Lithium ion Battery Pack Li-ion 18650 2S1P 7.4V 2200mAh wi

 
 
CE approved LPG LNG Gas Detector Alarm Standalone Gas Sensor Alarm

1. Upgraded car alarm
2. Compatible for cars with original remote central locking
3. Positive and negative door trigger
4. Arming/Disarmin

1.OEM service
2.Remote engine start/stop
3.Human voice alert
4.All water spray proof
5.High fidelity stereo

1. 9V Alkaline Battery operated and included
2. Easy to install and use
3. Test and Hush button
4. End of life warning
5. Low battery warning

Latest smart home anti-theft system built-in battery and siren quality PIR and door sensor PSTN bulgar alarm systems security home

Fire Temperature Sensor FM 200 Fire Alarm System Fire Alarm Device
 
 
Description:</s

1, Alumina case.
2, Wired/Wireless setup
3, Easy installation
4, Two-way, night vision
5, PIR motion sensor...

alarm system

Flame Sensor Module Relay Module Fire Alarm,Arduino Sensor

dual cpu parking sensor system
2 sensors are avaliable
high quality and best service
fast delivery and avaliable warranty
bibibibi buzzer alarm

 
 
Long range Wireless Passive infrared Detector , 9V motion detector pir
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Working principle:
To remind or contain gas leak quickly when leaked gas reaches the alarm concentration
Application: Gas fitting