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Products > door opener sensor > Shenzhen Patrol Hawk Technology Co.Ltd | Similar Products

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Wireless Door Sensor Window Sensor Intruder Alarm Smart APP Remote Control for Burglar Alarm System: offices, etc. When a change in the door or window switch status is detected, a message is sent to the host and trigger an alarm, and the user can be notified through APP push, SMS and phone calls to ...

Gas Leakage Detector for Home Fire Alarm LPG Gas Leak Sensor with Solenoid Valve and Manipulator: opening the detector to avoid any false alarm phenomenon. 6. Use and operation (1). Power preheating: After the detector is powered on, the yellow light is on for one second, and the green light is ...

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