Radio opening detector, is installed in the frame of a window and is therefore not visible when the window is closed. Suitable for windows and doors (Eurostandard) made of plastic. The built-in reed contact reacts to the removal of the included ring magnet (D 9 x 3mm). Tamper-proof and occupies an address in the 9000 system. Radio frequency: 868MHz. Power supply: 2 x lithium battery CR2354 3V (included). Operating temperature: -10°C to +40°C, dimensions: 25 x 192 x 9mm.
