Security Door Controls Blog

Electric Latch Retraction (ELR)

Since 2012, when SDC launched QuietDuo™ – the first Motorized ELR Kits to convert mechanical exit devices – we’ve been “quietly” leading in electric latch retraction (ELR) upgrades for access control. This includes retrofit solutions for most brands of exit devices as well as innovative SDC exit devices & mortise locksets with factory-installed ELR and automatic door operators with a built-in 1 Amp+ power supply to power them. Discover the transformative potential of electric latch retraction technology in revolutionizing security systems and enhancing protection.

Designed, Engineered, and Built in America 

Since 1972, SDC has manufactured popular electrified access control hardware like Bolt Locks, EMLocks® and Strikes in America while most of our larger competitors manufacture overseas. We’re known as the door control opening experts with more than 40 patents, 20+ active trademark brands and decades of product design firsts.

SDC’s locking systems can be found in virtually any application where access control of a door is required. We’re particularly adept at new or retrofit applications of 1 – 10 doors, where 80% of the security door and hardware market exists. 

There are numerous advantages to choosing our American-made products for your access control and security needs. Not only do these devices offer superior quality and reliability, but they also support the American economy and job market. Additionally, they comply with higher industry standards and provide a wide range of options to suit your specific requirements.

By opting for SDC products made in the USA for over 50 years, you can enjoy enhanced security and peace of mind, knowing that you have chosen a reliable and trustworthy solution.

Discover how the aging of the U.S. population represents Electronic Access Control (EAC) opportunities for door hardware and security professionals in SDC’s article from the April, 2024 issue of Door Security + Safety Magazine.

Even though we premiered a new look show booth, it felt just like old times at the show.

Discover how electrified options can revolutionize access control systems, enhancing security, architectural aesthetics, and code compliance.

Solenoid Controlled Mortise Locksets

Ensure the safety of your building occupants with fire exit doors that comply with code regulations. Discover how solenoid controlled mortise locksets can enhance security while meeting the necessary requirements.

Understanding Fire Door Code Compliance

Understanding the requirements for fire exit doors is crucial for maintaining a compliant and secure environment. One of the key aspects of fire door code compliance is the installation of proper hardware, including solenoid controlled mortise locksets. These locksets are specifically designed for fire exit doors, offering enhanced security while still meeting the necessary regulations. Installing solenoid controlled mortise locksets and maintaining fire exit doors in good working condition are essential steps towards achieving code compliance and creating a secure environment.

Exploring Solenoid Controlled Mortise Locksets

Solenoid controlled mortise locksets are a popular choice for fire exit doors due to their enhanced security features and ability to meet code regulations. These locksets use an electric current to control the locking and unlocking mechanism of the door and provide controlled access to the building. This enhances the security of the building while still allowing for quick and easy egress in case of an emergency.

Moreover, solenoid controlled mortise locksets are designed to meet the necessary fire door code requirements which ensures that the locksets contribute to the overall fire safety of the building. These locksets provide a reliable and efficient solution for controlling access and maintaining the safety of your building occupants.

Motorized electric latch retraction (ELR) systems are becoming increasingly popular in access control applications. These systems provide a convenient and secure solution for controlling entry and exit points in various commercial and institutional settings. With a motorized ELR, the latch can be retracted remotely, allowing for easy passage through a door without the need for physical contact. This not only enhances convenience for users but also minimizes the risk of unauthorized access or tailgating. Motorized ELRs are often integrated with other access control technologies such as card readers or biometric systems, providing a comprehensive and efficient security solution. Additionally, these systems can be easily installed and configured, making them suitable for both new installations and retrofit projects. With their reliable performance, smooth operation, and advanced features, motorized ELRs are revolutionizing access control and setting new standards for convenience and security.

Discover time-tested disability solutions that are fulfilling ADA compliance and unlocking access for individuals with disabilities. From electrified hardware to hands-free assistive technologies, this blog post explores the industry-leading solutions that are transforming accessibility.

Back to Basics: Electric Bolt Locks

Before SDC invented the 90° electric lock in the 1970’s, installation of electric bolt locks was costly, often requiring the cutting of studs and considerable reconstruction of door frames. Our Spacesaver® bolt lock design is a fundamental access control innovation now used worldwide. They install in any standard frame and most door stiles with a simple mortise cutout. The rotating bolt design makes tampering or cutting very difficult. An automatic relock ball switch keeps the bolt retracted when the door is open.

Additionally, they are field adjustable for wide door gaps and bidirectional for use on swinging or sliding doors. The Spacesaver® FS23M series is still the only dual-failsafe electric bolt lock in the industry.

Today, our comprehensive line of bolt locks use the same practical, yet pioneering approach to meeting access control requirements for safety, security and code compliance.