Wireless Home Security Window/Door Sensor with Entrance/Exit Recognization

$2.60

This is a smart wireless door/window sensor with door close/open bi-directional detection and beeper remind. When door is open, sensor will send out 5 “Di di di di di” sounds and then transmit wireless door-open signal; when door is close sensor will send out 1 “Di” sound as remind and then send out door-close signal to control panel. When sensor housing is open illegally, it will also send out tamper switch signal to control panel. In a word, this is a smart door/window sensor with particular stability than similar sensor in the market.

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