Functionality Detection: The device detects whether the roller shutter door is open or closed. Operation: When the door is shut, the magnet activates the reed switch, closing the circuit and signaling that the door is secured. Alarm Trigger: When the door is opened, the magnet moves away from the switch, which opens the circuit and sends a signal to an alarm system. Features Durable construction: Often made with durable materials like metal zinc alloy or aluminum and designed to withstand frequent use and harsh conditions. Reliable performance: The magnetic operation ensures a reliable and consistent connection. Easy installation: The device is typically surface-mounted with an adjustable bracket for easy mounting and a specified operating gap (often around 50mm) to allow for some door movement without false alarms. Wired connection: Wired versions are seamlessly integrated into alarm systems for immediate notification. Tamper protection: Some models include tamper wires to trigger an alarm if someone tries to cut the wires.
