Security Door Controls Blog

Explore SDC's latest innovations in access control systems, including our PT series new black finish options and versatile retrofit solutions for enhanced security and architectural integrity.

SDC’s ExitAnnunciator® EA100 series are multicolor signal devices that interface with delayed egress or standard EMLocks and many other brands.

SDC is a leader in Delayed Egress Applications having introduced the revolutionary category to industry in 1985 and patenting ExitCheck in 1995.

SDC’s approach is focused on opportunities in retrofitting existing mechanical exit devices to electronic while maintaining compliance.

SDC’s S5000 is a heavy duty, code compliant alternative to magnetic locks that require durability, superior aesthetics and smooth operation

The 45F fire-rated Grade 1 strike is specially designed with a durable, stainless steel die cast body

45 Series Universal Electric Strike ideal for high traffic applications