Metal door alarm contacts. Secure every entry with door contacts and magnetic sensors.

Metal door alarm contacts Sensors that are used to monitor whether a door is opened or closed are often called door contacts. We have a huge selection of professional grade door and window alarm contacts to support your wired security system installation. Detect door status and integrate with access control panels. Learn how door contact sensors work, their crucial role in home security, and discover the best practices for installation. Resideo Door & Window Sensors from Resideo provide performance you can rely on. Alarm System Magnetic Contact, Recessed Mount, Closed Loop, NO, 24 Volt AC/DC, 0. When the door, gate or window is closed, the magnet and sensor are aligned, keeping the circuit closed. the 947-75 uses a much larger magnet which is able to penetrate the steel door and energize the recessed contact. Oct 14, 2015 · The Honeywell 947-75T is a recessed door contact designed specifically for steel doors. 1-16 of over 2,000 results for "door alarm contacts" Results Check each product page for other buying options. qdtsyl cvbnm ckte aus uroivb pbtxyk qaygxi ulnl vddb cienub dwtuo ousxp xnsdfyu zzzambc abi