The Homematic IP Window / Door Contact detects open and closed windows and doors by an integrated infra-red sensor.
Open windows and doors are immediately displayed in the Homematic IP app. Even while being away from home you can keep a close eye to your windows and doors.
Technical specifications
Supply voltage: 1x 1.5 V LR03/micro/AAA
Battery life: 2 years (typ.)
Radio frequency: 868.3 MHz/869.525 MHz
Typ. open area RF range: 300 m
Dimensions (W x H x D): 102 x 15 x 20 mm
Weight: 30 g (incl. battery)
