S-SDC Wired Magnetic Contact – Scroll Steel Door Security Sensor

Description
Wired Scroll Steel Door Magnetic Contact
Model No
S-SDC

Key Features
Compact & Durable – Size: 713615mm
Magnetic Field Detection – Triggers an alert when doors/windows are opened
12VDC Operation – Compatible with alarm systems
Ideal for Steel & Garage Doors – Ensures security for large openings
Reliable Perimeter Protection – Detects intrusion before entry
Prevents Unauthorized Access – Triggers alarm if tampered

This is the perimeter protection for the premises. The magnetic contact is usually installed in exterior opening doors and windows that are reachable from the ground (or from another part of a building which is accessible from the ground – such as a garage). The contacts operate on the principle that when the door or window moves more than 1/2″ from the frame, the magnetic field on the switch is removed and this breaks the alarm circuit (or zone) which trips off the system. Once tripped, the alarm signal cannot be stopped by just closing the door or window. Magnetic contacts are popular and widely used because they detect an intruder before he enters the protected premises. A disadvantage is that the contact can be compromised if the intruder enters without opening the door or window, by breaking the glass.

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