WIFI Door / Window Sensor | NO Bridge Required | Sonoff DW2 The Sonoff DW2 sensor can help secure your doors, windows, fridges, freezers, caravan etc or anything that has a door that opens and closes. The sensor can trigger an alarm to your smartphone to inform you of an intruder when the door or … Continue reading WIFI Door / Window Sensor | NO Bridge Required | Sonoff DW2
