The Somfy Opening Detector is suitable for the Somfy TaHoma box. Place the opening detector near a window or door and it indicates whether a window or door is open or closed. Via the Somfy TaHoma box and via the app on your smartphone (iOS and Android) you set different scenarios for a detection. For example, all lights go on, the shutters go down or the alarm goes off when someone arrives unwanted. In addition to a scenario at the location, you immediately receive an SMS, push notification via the app or an e-mail message. The detector works on a 3 volt battery so you hang it on every place.