Choosing the Right Locking Hardware: A Locksmith’s Guide to SECO-LARM and Alarm Controls

When it comes to access control installations, your choice of locking hardware can make or break the job. As a locksmith expanding into access control, two of the most common options you’ll work with are electric strikes and magnetic locks (maglocks) – and selecting the right one depends on the door type, use case, and customer requirements.

Here’s a practical guide focused on two trusted brands: SECO-LARM for electric strikes, and Alarm Controls for maglocks.

When to Use Electric Strikes vs. Mag Locks

Fail-Safe or Fail-Secure?

    Fail-safe

    Unlocks when power is lost (used for maglocks, fire doors)

    Alarm Controls 1200S

    Mag Locks: Mounted to the surface of the door and header. They use electromagnetism to hold the door shut.

    • Best for: Glass doors, aluminum storefronts, or areas where mechanical latching is not practical.
    Fail-secure

    Stays locked when power is lost (used for security and perimeter doors)

    SECO-LARM SD-998C-D3AQ

    Electric Strikes: Installed in the door frame. They work with traditional locksets to release the latch electronically.

    • Best for: Doors with mechanical locking hardware, like office entry doors or apartment buildings.

    SECO-LARM Electric Strikes: Versatile and Budget-Friendly

    SECO-LARM offers a wide range of electric strikes suitable for both recessed and surface-mounted (rim) applications. They’re reliable, easy to install, and perfect for locksmiths looking to get into electronic hardware without breaking the bank.

    Top SECO-LARM Electric Strike Models

    • SD-996C-NUQ
      Universal electric strike for cylindrical locks
      • Field-selectable fail-safe or fail-secure
      • Works with most metal or wood doors
      • Compact and great for retrofit jobs
    • SD-998C-D3AQ
      1/2″ Rim strike for panic exit devices
      • Surface-mount design for aluminum or metal doors
      • Ideal for schools, retail stores, or commercial settings
      • Includes multiple faceplates for compatibility

    Why Locksmiths Like SECO-LARM:

    • Affordable without sacrificing reliability
    • Adjustable and easy to configure on-site
    • Ideal for standalone systems or smaller access jobs
    SECO-LARM SD-998C-D3AQ

    Alarm Controls Mag Locks: Reliable Holding Force for High-Traffic Doors

    If your job requires a maglock, Alarm Controls offers proven solutions that are easy to install and compatible with almost any access control system.

    Top Alarm Controls Mag Lock Models

    • 600 and 1200 Series
      Surface mount maglocks available in 600 lb or 1200 lb holding force
      • Fail-safe operation
      • Includes mounting hardware and LED status indicators
      • UL listed models available

    Why Locksmiths Like Alarm Controls:

    • Consistent performance in all environments
    • Straightforward wiring and mounting
    • Compatible with most access control kits
    Alarm Controls 1200S

    Pro Tip: Don’t Forget the Power Supply & Exit Hardware

    Both electric strikes and maglocks require regulated 12V or 24V power – and maglocks must be paired with request-to-exit (REX) devices and emergency release per code. While some access control systems provide some power that can be used for electric strikes, maglocks often require an external power supply. A.F.Y. can help you choose the right components to make your system compliant and functional.

    Altronix SMP3
    Alarm Controls TS-2-2
    Xantech T.REX-LT

    Not Sure What You Need? We’ve Got You Covered

    At A.F.Y., we help locksmiths match the right locking hardware to the job. Send us your door type, frame material, and locking method – and we’ll help you find the right SECO-LARM strike or Alarm Controls maglock to get it done right the first time.