The sensor detects door/window opening or closing and immediately sends a notification to the mobile app, keeping you informed in real time.
Setup takes minutes. Pair the sensor with the app via Bluetooth and control it comfortably from your phone over Wi‑Fi.
The app automatically informs you when the battery capacity drops to about 10%, so you can always rely on effective protection.
The smart SONOFF DW2 sensor makes your doors and windows more secure. With every opening or closing, it instantly sends an alert to the mobile app, so you can keep your home under control from anywhere. Thanks to simple setup via Bluetooth and 2.4 GHz Wi‑Fi, getting started takes just minutes.
The sensor is powered by a standard AAA battery, and the app will notify you in time about a low battery level, so you won’t miss any event. The minimalist white design fits any interior, and the easy mounting on door or window frames ensures trouble‑free use.
