About us
SECURITY DOOR CONTROLS manufactures and markets mechanical door locks, exit devices, access controls, electronic locking devices, and security systems worldwide. Since 1972 SDC products have been Designed, Engineered, and Built-in America while most of our larger competitors manufacture overseas. SDC transforms the application of electricity to door openings for security and fire & life safety.
OUR BRANDS
SDC HANDS-FREE DOOR SOLUTIONS ™
SDC’s Hand Free Door Solutions™ meet the need for health and Fire & Life Safety or ADA compliance. No need to ever touch a door again on the way in or out of a facility, office, or bathroom. A wave of the hand in front of the 474 Touchless Switch activates the Auto EntryControl™ Low Energy Swing Door Operator for entry or egress.
E75 Privacy Series
Standalone Electronic Cylindrical Locksets
with Privacy
The SDC E75 Privacy is an indoor/outdoor standalone electronic battery-powered solution, providing controlled access for basic and multi-level convenience. The privacy function locks the keypad by engaging the Privacy Button on the inside, and the red LED on the outside flashes to indicate room occupation.
LR100
Retrofit Exit Device
ELR Kits
The SDC LR100 Series Electric Latch Retraction Kit enables electric access control and dogging of mechanical exit devices. When energized the motor retracts the exit device latch and pulls the pushpad on most devices into the dogged (depressed) position enabling momentary or sustained push and pull operation of the door.
ExitCheck® Series
Integrated Delayed
Egress Magnetic Locks
Verbal Instruction, Tone and Digital Countdown Display – SDC’s proprietary annunciation incorporates an alternating tone and verbal message with a digital countdown display and sign. Options: Door Status Sensor; Magnetic Bond Sensor.
NEW PRODUCTS
3rd Quarter 2021
S3 Covered Geography
CO, WY, UT, MT

What’s New
S4000 Series
Commercial Exit Devices
SDC’s S4000RE is a Low-Profile, High Value Electrified Grade 1 Exit Device with stainless steel construction. Not all exterior doors have adequate overhang protection, exposing them to weather and corrosion. The S4000ER is corrosion resistant and comes with Motorized Latch Retraction and Request-To-Exit standard at no charge – making it more cost-effective than competitive exit devices requiring add-on options. Application is as easy as Install – Power – Done.
S5000 Series
Storefront Exit Devices
SDC’s S5000 is a heavy-duty, code-compliant alternative to magnetic locks for storefronts applications that require durability, superior aesthetics, and smooth operation. This UL305 panic-rated exit device is American
Made, featuring all-metal construction that is particularly
suited to aluminum glass entrances for both manual and automated
door openings and new or retrofit applications.
Things You Need To Know About
Tech Talk with Mauricio:
IP Pro Quick Start
SDC’s IP Pro® IP-based Single Door Access Controllers – now available with Free PLUS PC Client Software – allow expansion from one Standalone door up to a 100-door “Grid.” Configure and manage every door from a single interface that grows with you and eliminates the headaches of costlier, more complicated enterprise solutions. Every IP Pro® Controller comes with secure, built-in software to manage up to 32 doors from any standard web browser to allow for real-time monitoring, user management, and audit trail up to 5,000 events.
Auto EntryControl Installation
SDC’s Auto EntryControl™ Low Energy Swing Door Operator offers true Plug N Play Access Control System Installation. It features an internal, 1.0 Amp+ Accessory/Lock Power Supply to allow for integration with electric latch retraction exit devices, electric strikes, and other electric locking system without adding an extra power supply.
SDC LR100VDK Installation Challenge
Side-by-side comparison of Electrification Kits for Van Duprin Exit Bar Device, highlighting the SDC Retrofit Solution and its Quiet Duo™ Electrification Kits. Side-by-side comparison of Electrification Kits for Van Duprin Exit Bar Device, highlighting the SDC Retrofit Solution and its Quiet Duo™ Electrification Kits.
• Eliminates the need for costly replacement of existing exit device
• Significantly less labor and costs compared to competitive retrofit kits
• Installs in Von Duprin non-fire-rated panic device without removing from the door
SDC’s Quiet DUOTM LR 100 Electric Latch Retraction Kit enables electric access control and dogging of mechanical exit devices. When energized the motor retracts the exit device latch and pulls the push pad on most devices into the dogged (depressed) position enabling momentary or sustained push and pull operation of the door. Retrofits most major brands of mechanical exit devices: Adams Rite, Arrow, Best, Cal-Royal, Corbin Russwin, Design Hardware, Detex, Dorma, Dor-O-Matic, Falcon, Hager, IDC, K2, Jackson, Marks, Marshall Best, PDQ, PHI, Precision, Sargent, Schlage, SDC, Tell, Town Steel, Von Duprin and Yale. Retrofit exit devices with our proven concealed solution.
People you need to know
Resources
Security Door Controls Retrofit Made Easy
SDC has added a new, labor-saving SOLUTION FUNCTION to our award-winning SDCSecurity App. SDC will recommend a cost effective solution with product information links to retrofit the opening for access & egress control locking hardware.