Security Door Controls Blog

Celebrate Independence Day with Security Door Controls as we reflect on the values that drive American innovation and community. Enjoy a safe holiday! We will be closed Friday, July 3rd, 2026.

See us at 2026 ALOA Convention & Security Expo, stop by the SDC booth #117 and discover the latest innovations in access control, electrified door hardware, locking solutions, and integrated security technologies.

Discover how Comsense® enhances efficiency in architectural openings and access control projects, streamlining processes and improving accuracy.

Celebrate SDC Founder Day and explore the innovation legacy of Art Geringer, the pioneer of modern electrified access control.

Discover the Electra™ 7200 Series, a reliable electrified locking solution that combines durability, security, and seamless integration for modern access control needs.

SDC Captures 1st Place DHI Robert G. Ryan Editorial Award.

In the memory and honor of so many, SDC will be closed on Monday, 5/25 and open again on Tuesday, 5/30.

Discover why SDC's EMLocks are the industry standard for electromagnetic locks, offering reliability, versatility, and long-term value for access control solutions.

SDC's EntryControl AUTO Series delivers convenient ADA-compliant swing door operation of high-traffic doors at any point of entry to keep people moving.

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