Mini wireless opening detector, white, for mounting on doors or windows. Reacts when the magnet is removed. Includes anti-tamper protection. Occupies an address in the 9000 system. Power supply: 1x 3V CR2032 lithium battery (included).d. Radio frequency: 868MHz, operating temperature: -10°C to +40°C. Color: white. Dimensions: 26 x 55 x 16mm, magnet: 16 x 55 x 15mm. 2 pcs. 5mm spacers each for the magnet housing and for the detector housing and, as an alternative, a D 9 x 3mm ring magnet are included.