Magnetic Contact Security Detector IO 102-20 B3P V for Garage Gates and Containers

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 shift with the issuance of the alarm notification by opening or closing the contacts of the reed. Klemik screw on 4 contacts.