Professional motion detectors, light barriers, magnetic contacts, glass break detectors or electrical locks for securing doors, windows, interior or exterior skin are the right accessories for planning a secure wired alarm system.Product features:Magnetic contact for installation in windows or doors. Brown plastic housing, so can also be used for armored doors. Alarm and sabotage line. Pre-assembled 4-wire cable (length: 1m). Delivery includes magnet.Technical data:Dimensions: Length 28 mm. Mounting hole: 20 mmInstallation instructions:Note: