Ideal for Enhanced Security: Specifically designed for roller shutter and garage doors, this sensor features a robust metal zinc alloy housing. It's an essential component for any home security system, ensuring reliable protection against unauthorized access. Versatile and User-Friendly: Equipped with an adjustable bracket, this magnetic contact switch is straightforward to mount, making installation a breeze. The -mounted design ensures a secure fit on the ground, with a generous operation of over 50 mm. Optimal Functionality: The NC (Normally Closed) contact type enhances security by switching off when the magnet is displaced. This feature is crucial for maintaining the integrity of your home's burglar alarm system, providing peace of mind through advanced technology. and Reliable: Constructed to withstand heavy usage, the sensor's metal housing protects against physical tampering and environmental factors. Its design ensures long-lasting performance, making it a reliable choice for your home security needs. Comprehensive Security Solution: This magnetic contact switch is not just a part of your alarm system; it's a critical investment in your family's safety and security. Easy to install and operate, it provides a dependable first line of against potential intruders. Color: Silver Material: Metal Package Contents: 1 x magnetic alarm sensor Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.