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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Highlights
Install Easily, Start Immediately

Instant and Smart Notificaitons

Everything under Control
