Description
This magnet door and window sensor is probably the smallest sized sensor in the world.
His size is only 3,5 x3,5 x 2cm ( 1,4 x 1,4 x 0,8 inch) The magnet sensor will send a wireless information if door / window is opened or closed, the signal is sent up to 40m (130 ft) distance directly on your Andorid smartphone (iphone app is in development) and the DST- connector.
The button battery (CR2430) works up to 3 years and can be replaced, the installation is done by special (removable) sticker on any flat surface.