Magnetic Contact Security Sensor IО 102-20 B2P V for Garage Door Locking

Designed to block garage doors, hangars, railway containers, telephone cabinets and other structural magnetically conductive (metal) and magnetically non-conductive (aluminium, wood, etc.) elements of buildings and structures to open or displacement with the issuance of alarm notification by opening or closing the reed contacts in the loop of the control panel. With screw terminal block.