Please upgrade to the new Edge browser, or use Chrome, Firefox or Safari, before continuing. Internet Explorer will not support the best shopping experience on the ADI Digital Branch site after March 12. close button

Security Door Controls

Code Compliant and Reliable
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
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
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

Getting to Know SDC

SDC is the door control opening expert with more than 40 patents and 20+ active trademark brands. SDC's locking systems can be found in any application where access control of a door is required. SDC offers savings through:

• Lower installation costs
• Fewer callbacks, increased longevity
• High-touch service that only a family-run enterprise can provide

Download Brochure

Featured SDC Products

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

Components
Download our brochure overview of basic access & egress control components for controlled door systems from which you can assemble turnkey solutions.
Solutions
Download our code-compliant access control security solutions for commercial buildings and vertical markets to ensure safety, security and code compliance.

SDC Resources

Code Tools
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
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
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.

Videos
SDC Door Prop Alarms – Protect Your Investment
DoorSnap – Door Control Retrofits Made Easy
SDC – LR100VDK Installation Challenge