Security Door Controls Blog

Since 1972 SDC products have been Designed, Engineered and Built in America. Visit Booth#20109 to checkout some of SDC's popular products.

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

Doors are the last line of defense, protecting the facility’s most valuable assets. Learn why physical door security is essential in modern Datacenters.

Discover SDC's explosion proof access control solutions designed to prevent sparks in hazardous environments, ensuring unmatched safety and reliability. Learn more about SDC's explosion proof collection of products.

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.

Discover how SDC EntryCheck® keypads simplify and enhance security for up to 500 users with self-contained, easy-to-install digital access control.

Upgrade your facility's security with SDC's Selectric® 7800PRO series, ensuring compliance, reliability, and enhanced fire safety for a seamless access control solution.

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.

Explore SDC's White Papers for expert insights on access control solutions, installation tips, and industry news to enhance your security systems knowledge and business credibility.