SDC 1581DEV Indoor Single Slave EMLock, 650 lb, 628

Secure interior access with reliable, monitorable holding power — ideal for office suites, server rooms, and controlled areas. The Security Door Controls SDC 1581DEV indoor single slave electromagnetic lock combines a robust 650 lb holding force with a built-in activation sensor to provide continuous door status feedback for access control, security monitoring, and surveillance systems. The lock supports dual-voltage operation (12/24V DC at 440/220 mA), allowing straightforward integration into existing power and access control infrastructures while optimizing current draw.

Finished in 628 for a clean, professional appearance, the 1581DEV installs easily on single-leaf doors and pairs with exit devices and controllers for fail-safe operation. Its activation sensor minimizes nuisance alarms by confirming secure engagement and enabling remote monitoring through your security management platform. Manufactured in the US by Security Door Controls, this magnetic lock offers durable performance and simplified maintenance for building security teams and integrators.

Specify the SDC 1581DEV for dependable, monitored door security in commercial and institutional deployments — contact us to add it to your next access control project.

• Provides dependable interior door security with a 650 lb holding force to protect sensitive areas
• Built-in activation sensor enables real-time door monitoring and integration with access control and surveillance systems
• Dual-voltage design (12/24V DC, 440/220 mA) supports flexible installations and energy-efficient operation
• Low-profile 628 finish offers a professional look while remaining compatible with standard single-slave door configurations
• Rugged US-made construction from Security Door Controls reduces maintenance and ensures long service life