Security Door Controls Blog

From the SDC family to yours, we wish you a Merry Christmas and a New Year full of success and prosperity. Our office will be closed December 25th and January 1st.

From the SDC family to yours, we wish you a Merry Christmas and a New Year full of success and prosperity. Our office will be closed December 25th and January 1st.

Explore the benefits of factory installed ELR in the SDC S5000 storefront exit device and how it can optimize your code compliant entrance upgrades.

SDC would like to share our gratitude this Thanksgiving!

We'd like to thank our veterans for their service to our nation!

Discover the benefits of using premium, US-made, electrified locking devices. With over 35,000 door hardware components, SDC is The Lock Behind the System.

Learn tips for increasing power when designing or retrofitting for door access control for your worship facility.

Discover the advantages of motorized electric latch retraction in industrial exit devices, including cost-effectiveness and enhanced security. Explore the features of the SDC S4000 exit device and how it can optimize your facility's safety measures.

Learn why electromagnetic locks are highly reliable, long-lasting units compared to other electric locking devices and provide proven, failsafe security.

Reduce time-in-transit with our shipQUICK Inventory of 300+ SDC products that are available for shipment within two business days!