Securitron LMS1 Latch Monitor Ansi Strike Spdt 3 Amp

Product Description

The SECURITRON LMS1 is a latch monitor designed for use with ANSI 2-3/4 inch strikes, providing supervised feedback on door latch position in electric locking and access control systems. The unit operates as a single-pole double-throw (SPDT) switch rated at 3 amps, allowing the installer to wire it into a monitoring loop that signals whether the latch is fully engaged or retracted. At 0.4 pounds and a compact profile of 4.5 inches by 4 inches by 0.7 inches, the LMS1 fits in standard door frame assemblies without significant modification. It is typically installed by licensed locksmiths, access control technicians, or low-voltage security integrators.

The LMS1 is suited for commercial and light-industrial door openings where latch status monitoring is required by the security system or building management platform. It pairs with electric strikes in access control installations where door position or latch engagement must be reported back to a controller or alarm panel. Typical applications include office entryways, stairwell doors, and controlled-access corridors using ANSI-standard hardware.

Key Features

• SPDT output rated at 3 amps for direct integration with controllers and monitoring panels
• Designed for ANSI 2-3/4 inch backset strikes, a widely used standard in commercial door hardware
• Compact form factor: 4.5 inches long, 4 inches wide, 0.7 inches tall
• Lightweight at 0.4 pounds, minimizing added load on door frame assemblies
• Sold individually as a single unit

Compatibility

Designed for use with ANSI 2-3/4 inch electric strikes in commercial access control and electric locking installations.

Installation Notes

Installation is typically performed by a licensed locksmith or low-voltage access control technician familiar with ANSI strike hardware and door-frame wiring. Power down the access control panel and de-energize the strike circuit before beginning any wiring work. Follow applicable local codes and the door hardware manufacturer's instructions for frame preparation. Confirm SPDT wiring polarity and normally-open or normally-closed configuration at the controller before restoring power.