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Security Door Controls manufactured electrified access control hardware and controllers worldwide
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Security Door Controls
Code Compliant and Reliable
Our patented EMLocks® with modular assembly makes them easy to stock, install, upgrade and maintain. SDC electric strikes accommodate a variety of mechanical locksets, door and frame styles.Shop Now
Control Exit Perimeter Doors
Stop theft, control pedestrians in public facilities, control wandering patients, and guard against infant abduction.
Delay exit for 15 or 30 seconds while being alerted to unauthorized egress. Shop Now
Upgrades for Access Control
All SDC ELR products use motorized technology to provide both latch retraction and dogging and are powered with the built-in 1 Amp+ power supply, standard with SDC's auto series low-energy operators.Shop Now
Shop By Category
Locking Devices
Effective access and egress locking solutions for door openings
Access Controls
Digital and card access control systems to provide real-world door control
Egress Controls
Allow exit through access control openings without prior knowledge
ADA Controls
Maximize public door accessibility for ADA applications and compliance
Power Transfer Devices
Provide power and monitoring to door hardware and access controls
Power Supply
Support controls and electric locking hardware with clean power
Remote Controls
Flexible control and monitoring without PC-based access control
Accessories & Misc
Complement or enhance almost any access or egress component
SDC Resources
Cool Tools
See the interactive toolbox to help you find SDC Access and Egress Control product details including how to install, system design ideas and more.Learn More
DoorSnap® For Retrofits
Use the free SDC Security App with DoorSnap™ on your
smartphone, send a pic and receive a SDC Access and
Egress Solution. Learn More
Free SDC Smartphone App
Download the free SDC Security App from Google Play or the Apple store and use all the interactive resources of the website on your tablet or smartphone. Learn More
Learn more about the SDC Difference
From an overview of our access & egress solutions, to solving access control power issues, to meeting compliance with SDC products, there’s a brochure to help with your door project.
Door Control Catalog
SDC is the bridge from mechanical access control to code-compliant electrified security systems. See why we’re the Door Control Opening experts.
Avoiding Power Problems
Access Control power needs are unique. This guide is designed to help avoid real world access control power problems in new or retrofit applications.
Electronic Security Made Easy
Tap into the nearest Ethernet connection to power and control doors, SDC code-compliant PoE access and egress hardware devices via web browser.
SDC Door Prop Alarms – Protect Your Investment
DoorSnap – Door Control Retrofits Made Easy
SDC – LR100VDK Installation Challenge
