Security Door Controls Blog

Discover the transformative potential of electric latch retraction technology in revolutionizing security systems and enhancing protection.

We take this day to remember the lives impacted on 9/11

Discover the transformative potential of electric latch retraction technology in revolutionizing security systems and enhancing protection.

SDC will be closed on September 2nd in honor and celebration of Labor Day

It is with great sadness, and also with great gratitude for having known and worked with her, that we announce Rhonda’s passing Thursday morning, August 15th, after a difficult illness.

Explore the importance of delayed egress devices in ensuring security and compliance in various settings.

Upgrade your security system with IP-based access control for doors. Discover the benefits and possibilities of integrating door openings into EAC systems.

In observance of Independence day, SDC will be closed on Thursday, 7/4, and open again on Friday, 7/5.

In 1972, SDC founder Art Geringer created the blueprint for the modern era of electrified access control door hardware and controllers. We proudly continue his commitment to innovation, skill and quality today.

Discover the benefits of choosing premium locking devices made in the USA for enhanced security.