Open Closed

H2 Open Closed is the device that monitors and informs you if windows and doors are open or closed.

Dimensions:                                                      50 x 50 x 18 mm
Battery Life:                                                      ca. 2 Years (type CR 2032)
Radio frequency:                                              868,3 MHz
Highest offset between both parts                up to +/- 2,5 mm