Wireless vibration detector, reacts to vibrations on windows/doors. Can also be set as an inclination sensor. For use with safes, works of art, etc., with adjustable sensitivity and tamper protection. Works with a semiconductor three-axis acceleration sensor. Occupies an address in the 9000 system. Includes tamper protection. Radio frequency: 868MHz. Power supply: 1x 3V CR123A lithium battery (included). Color: white. Dimensions: 30 x 75 x 20mm.