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.

Discover the enduring value of SDC's US-made access control products, highlighting our commitment to quality, innovation, and domestic manufacturing.

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.

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.

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.

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