Security Door Controls Blog

SDC introduced the first motorized retrofit ELR kit in 2012. Since then Quiet Duo LR100 solutions have been the leader in durability & installation ease.

Discover how SDC's shipQUICK® program reduces downtime and accelerates project completion with reduced lead times for security installations. Stay efficient and meet tight schedules effortlessly.

SDC’s U.S. factory and lean manufacturing enhance product quality, reduce lead times, and comply with the Buy American Act for superior access control solutions.

Enhance your exit devices with SDC's QuietDuo™ LR100 Series, offering cost-effective, quiet, and reliable motorized electric latch retraction for seamless access control and safety compliance.

Discover the enduring value of SDC's US-made access control products, highlighting our commitment to quality, innovation, and domestic manufacturing.

SDC provides code-compliant access control solutions across diverse applications, ensuring security, fire safety, and ADA compliance, while enhancing operational efficiency and meeting legal obligations.

ATTEND IML Salt Lake City EXPO – See SDC’s 7600 Motorized ELR Mortise Locks and SDC’s AUTO Low Energy Swing Door Operators.

Save time and money on multi-door projects with SDC's Access & Egress Control System Design Services, ensuring seamless integration and optimal performance with pre-built system wire diagrams.

Discover SDC's latest access control solutions, including motorized latch retraction locksets and ADA-compliant door operators, at the IML Security Expo in Salt Lake City.

Since 1972 SDC products have been Designed, Engineered and Built in America. Visit Booth#21109 to checkout some of SDC's popular products.