S4 Door Sensor
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 received by admins if disassembled by others, which is usually used in private houses or museums for thief prevention.
How it works
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|Dimension||55×26.2×13mm (main body), 38.5×12.5x11mm (magnet)|
|Weight||26.6g (with battery)|
|Battery||230mAh,13months (by default)|
A password is required to connect the S4 to the App for the first time. If you do not unbind the S4, no password is required for each connection; if unbind, a password is required to connect again.
The broadcast interval of S4 is 900ms. According to this broadcast interval, the momentary opening and closing of the door can not be detected, and the use of S4 requires a longer time of opening and closing to be monitored. Combining the broadcast interval of S4 and the scan and upload interval of the gateway, it is recommended not to open and close doors and windows multiple times within 1s.