Security Door Controls Blog

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.

Discover the versatility of SDC UR Series Door Controllers for simplified, effective access control, ideal for single to multi-door applications in various security scenarios.

Discover how Security Door Controls' products are now available on Comsense®, streamlining your access control hardware purchasing and project management.

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.

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.

Come visit us at ISC West 2025, booth # 21109! Since 1972, SDC's products have been made in America while most of our larger competitors build overseas.

DoorSnap makes Electronic Access Control Upgrades for door openings easy.

We’re building more components in-house to diminish supply chain issues, increase quality control and reduce lead times.

We’re building more components in-house to diminish supply chain issues, increase quality control and reduce lead times.

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