MC-38 Wired Door Sensor Alarm – Surface Mount Magnetic Reed Switch, Normally Closed (NC) Contact, White, for Home Security, Door & Window Burglar Alarm Systems (2 pack)

[Pre-Wired for Quick Integration] Comes with a pre-attached cable for easy connection to alarm panels, access control systems, and automation setups.

[Normally Closed (NC) Configuration] Features a Normally Closed (NC) contact, ensuring the circuit remains closed when the door or window is shut, providing enhanced tamper detection and reliability.

[Easy Surface-Mount Installation] Designed for surface mounting on wooden, metal, or PVC frames. Includes screw holes for secure and straightforward installation.

[Versatile Applications]Ideal for home security systems, offices, retail stores, warehouses, garages, cabinets, and safes.

[Durable & Discreet Design] Made from high-quality ABS plastic with a compact, low-profile white finish that blends seamlessly with most door and window frames.

[Reliable Security Monitoring] Detects the opening of doors or windows by separating the magnet from the reed switch, instantly triggering connected alarm systems.