S4 Door Sensor is a door&window sensor with BLE5.0 technology and a magnetic sensor inside. Users can realize remote door monitoring to ensure asset or stuff security; also, alerts are received by admins if disassembled by others, which is usually used in private houses or museums for thief prevention.
To install by simply peeling off the adhesive on the back of the device and then mounting the main body and magnet to the door frame and door respectively.
It can combine with temperature sensors and can use on cold chain applications
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