Magnetic Contact Security Sensor IО 102-20 B2M (3) for Garage Doors and Containers

Designed to block garage doors, hangars, railway containers, telephone cabinets and other structural magnetoconductive (metal) and magnetonevoduyuschih (aluminium, wood, etc.) elements of buildings and structures to open or displacement with the issuance of alarm notification to the loop of the receiving and control device by opening or closing the contacts of the reed. Metal protective corrugated sleeve. Vandal-proof.