Used for overhead doors in both industrial and residential situations where a wide gap is present. Rugged aluminum housing. 3″ (76mm) Gap. For closed loop circuits.

Brand new The Seco-Larm Enforcer Track-Mount Overhead Magnetic Contact Switch (SM-4201-LQ) is a security sensor designed for doors and windows. With a magnetic contact switch, this product from Seco-Larm offers protection against intrusion by detecting when a door or window is opened or closed without the use of a key. The overhead track-mount design allows for easy installation and ensures reliable performance in monitoring your home's security.

NO MANUAL The Seco-Larm Enforcer Track-Mount Overhead Magnetic Contact Switch (SM-4201-LQ) is a security door/window sensor designed for home surveillance. Made by the reputable brand Seco-Larm, this model is compatible with other Seco-Larm products and is ideal for detecting potential security breaches. The track-mount feature allows for easy installation and the magnetic contact switch ensures reliable sensor activation. This product provides an added layer of security for homeowners looking to enhance their surveillance system. Small tear on packaging seam

Brand new in Factory packaging. The Seco-Larm Enforcer Track-Mount Overhead Magnetic Contact Switch (SM-4201-LQ) is a security door/window sensor designed specifically for use with Seco-Larm products. It features a track-mount design for easy installation and a magnetic contact switch for reliable door/window detection. This sensor is a crucial component in a home surveillance system, providing added security and peace of mind against potential intrusions. Designed by the trusted brand Seco-Larm, this model ensures compatibility and high performance for safeguarding your home.