Security Door Controls Blog

SDC celebrates the Fourth of July in honor of the signing of The Declaration of Independence, a day that represents America's birthday. SDC will be closed Friday, July 4th, 2025.

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.

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

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

Easily retrofit electrified locksets without door core drilling using SDC's Wireless Power Transfer technology, simplifying installation and reducing maintenance for enhanced security and functionality.

In the memory and honor of so many, SDC will be closed on Monday, 5/27 and open again on Tuesday, 5/28.

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.

SDC received Exhibitor Loyalty Award at ISC West 2025. Since 1972, SDC's products have been made in America while most of our larger competitors build overseas.

Enhance the safety and reliability of your automatic doors with SDC’s AUTO-IR accessory, designed to detect and prevent collisions with stationary objects and slow-moving individuals.

SDC's shipQUICK® program reduces time-in-transit to ensure fast delivery of essential access control components for efficient installations.