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New dealers: $20 off 2GIG security panelsShop Fire-Lite FACPs with Built-in 5G LTE-M CommunicatorShop LG commercial displays and more Up to 40 Seconds Faster Alarm DeliveryExplore our updated Smart Home guide
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
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
Security Door Controls (SDC) manufactures and designs access control technology for door controls, door locks, exit devices and more. SDC's products are made to enhance security in industrial facilities, commercial buildings, retail stores, schools, airports and military bases. As a thought leader in electrical security solutions, SDC is known for developing the first electrified lockets approved for stairwell door applications. SDC's portfolio includes hinges, latches, conduits, fire pull stations, request-to-exit bars, magnetic locks, electric strikes, push buttons, push bars, keypads, door prop alarms, power supplies and more.