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Security Door Controls Blog

Thank You to Our Nation's Veterans

Designed, Engineered & Built in America Since 1972

Energy Efficiency for Electronic Access Control Door Upgrades

The Benefits of Motorized Electric Latch Retraction in Industrial Exit Devices

Electromagnetic Locks: Proven, Failsafe Security

Avoid the Wait with Our shipQUICK Inventory

SDC Products Now on Comsense®

SDC Supports Community Baby Shower to Help Expectant Parents

SDC Remembers...

Revolutionizing Security: The Power of Electric Latch Retraction

We Will Be Closed For Labor Day

Rhonda Wiegman In Memoriam

Understanding Delayed Egress Devices

Next-Level Security: Exploring IP-Based Access Control for Doors

We Celebrate this July Fourth Day of Independence

June 10th: A Day to Celebrate Our Founder

Access Control Hardware and Locking Devices for Enhanced Security - Made in the USA for Over 50 Years

Growth in Demand for EAC in Long Term Care

The Importance of Classroom Door Security in Schools

Closed to Observe Memorial Day 2024

Avoid the Wait with Our shipQUICK Inventory

The Advantages of Electrified Solenoid Controlled Cylindrical Locksets for Fire Door Integrity

SDC at ISC West 2024: The Crowds Are Back!

Electrified Exit Device Options: Taking Access Control to the Next Level

See SDC at ISC West 2024

Delayed Egress Locking Systems and Airport Security

Happy St. Patrick's Day from SDC

Join Our Team: Now Searching for A Technical Support Rep

Fire Exit Doors: Code Compliance Made Easy

Motorized ELR for Access Control

Unlocking Access: Proven Disability Solutions for ADA Compliance

Merry Christmas from SDC

Back to Basics: Electric Bolt Locks

Happy Thanksgiving!

Thank You to Our Veterans

SDC Hybrid Power Supplies Meet the Unique Needs of Access Control Locking Devices

See SDC at ISC East New York 2023

Avoid The Wait With shipQUICK Products

Back to Basics: Electric Strikes

Don't Miss our 4th Quarter Featured Products

Southeast Security Products Crowned DoorSnap Champions

SDC Remembers...

Leaders in Latch Retraction

SDC Will Be Closed for Labor Day 2023

Back to Basics: Egress Devices

Back to Basics: Electromagnetic Locks

Don't Miss our 3rd Quarter Featured Products

We Celebrate this Day of Independence

Price List 22 is Available for Download Now!

Celebrating a Special Founder's Day Centenary - Saturday, June 10th

Delayed Egress Locking Systems Overview: Part 3

Size Matters

Closed to Observe Memorial Day 2023

Delayed Egress Locking Systems Overview: Part 2

Delayed Egress Locking Systems Overview: Part 1

SDC Doubles Size of Campus Headquarters

BLACK FINISHES FOR VIRTUALLY ANY PROJECT

EA100 SERIES LED VISUAL ANNUNCIATORS

DELAYED EGRESS: THE INTEGRATOR'S CHOICE SINCE 1995

Don't Miss our 2nd Quarter Featured Products

SDC at ISC West Las Vegas 2023

See SDC at ISC West Las Vegas 2023

Happy St. Patrick's Day from SDC

Built-In Profits

Don't Miss our 1st Quarter Featured Products

Back to the Basics

Product Availability for Over 50 Years

S5000 STOREFRONT EXIT DEVICE

LES NEAL CELEBRATES LAST DAY AT SDC AND IN THE INDUSTRY!

SDC Supports Local College’s Part-Time and Seasonal Job Fair

SDC’s CEO Wins Office Football Pool

Leaders in Latch Retraction

Meet Erik and Les - Our New Sales Associates

New SDC Animated Installation Quick Guides to Save You Time

SDC's Door Prop Alarms: Protect Your Investment With Our EA Series

New 2022 Condensed Catalog

SDC Gets a Grip on Sales at IMLSS Utah Golf Tourney

Don't Miss SDC's New Article Featured in Locksmith Ledger!

SDC's UniFLEX™ Electric Strikes

SDC's AUTO Operators Work Well With Electric Latch Retraction Applications

IPPro Is Now UL294 - Safe, Secure, Easy to Implement

SDC Selectric Pro Z7800/Mod 7800 Locksets Replace or Electrify Most Major Brands

SDCs Approach To Exit Devices

New Addition to Exit Device Line: S5000 Storefront with Factory Installed Latch Retraction

SDC announces Tom Morrison as National Sales Manager

Q: Where can two SDC employees be found on any given day?

SDC Observes Memorial Day With First Get-Together of the Year

Lockdown Control WITHOUT Barricades

Door Control Retrofits Made Easy

SDC Welcomes The Newest Addition To Our Family!

E75 Programming 101

EntryCheck® E75 Standalone Electronic Keypad Installation

Build-In Power & Profits: S4000 Electrified Commercial Exit Device

Now Hiring: Returns Coordinator Position

3 Hour Fire Rated Strike: UniFLEX™ 45F

Striking Adaptability: 45 Series Universal Electric Strike

E75KL Privacy Standalone Electronic Lockset Eliminates Key Control Issues

Hands Free Hygiene: Keeping The Door Open

SDC's Hands Free Door Solution™

Never Touch A Bathroom Door Again

LOW-ENERGY AUTOMATIC DOOR OPENERS FOR ADA COMPLIANCE

Not Only for ADA Compliance- 99% of Consumers Prefer Automatic Vs. Manual Doors

Low-Energy Automatic Door Openers for Healthcare Facilities

Tech Review: 1511 Delayed Egress

How To Select the Right Delayed Egress Lock Configuration For You

Why You Should Continue Your Education In Access Control Power

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Security Access Control Systems and Electronic Lock Blog

Welcome to SDC’s official Security Access Control Systems and Electronic Lock Blog. Here you'll find our latest news and answers about everything to do with access control hardware, accessories, power and their proper application to create access and egress control solutions - including:

  • White Papers
  • Installation tips
  • Troubleshooting
  • Tech Info

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