Wireless opening detector that signals the first signs of intrusion into the room by breaking into a door or window. It can be mounted on all types of doors, including those with a metal base. It records changes in the vertical slope angle, shocks and vibrations. An external contact is available for connecting third-party detectors. CR123A battery. Dimensions Diameter: 20mm Height: 90mm. Weight 29g. Certification Grade 2, CE