• Home
  • Seco-Larm Enforcer Steel Door Magnetic Contact, 3/4" Recessed, NC, 1" Gap

Seco-Larm Enforcer Steel Door Magnetic Contact, 3/4" Recessed, NC, 1" Gap


Please Select Option To View Availability


WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov


Magnetic Contact With 18-Inch Wire Leads For Steel Doors & Windows

Use the Seco-Larm Enforcer Steel Door Magnetic Contact, 3/4" Recessed (18" wire leads) to discreetly monitor a steel door or window. Made out of high-impact ABS plastic, the switch and magnet feature one-piece, durable construction, 18-inch wire leads, and side ribs to fit snugly into the mounting holes. The contact is designed for closed loop circuits and has an operation gap of one inch. Plus, the contact reed switch is SPST and iridium-plated, ensuring a high melting point with Vickers hardness, resulting in higher handling power and long life.

  • Designed for steel framed doors and windows where space is limited
  • ABS plastic switch and magnet with ribs for securing in holes
  • 1-inch operation gap with 18-inch wire leads, for closed loop circuits
  • Contact reed switch is SPST and iridium-plated to have a high melting point
  • Strong, durable construction with long-lasting life


  • Magnetic Contact
  • Manual

Seco-Larm Security Products

So many places and things to protect; so many ways to protect them; one partner: Seco-Larm. Under the Enforcer trademark, Home Controls offers an impressive line of Seco-Larm security products, ranging from simple switches to some of the most sophisticated alarm devices. Whether for physical security, CCTV, access control, RF equipment, or vehicle security, Seco-Larm is the premier choice. Seco-Larm gives its customers such an extensive range of dependable, cost-effective security products with a full program of service and support.


  • Manufacturer Part #:
    • SM-4105-LQ/B: Brown
    • SM-4105-LQ/W: White
  • Loop Type: Closed Loop
  • Electrical Configuration: N.O. (SPST)
  • Operation Gap: 1" (25mm)
  • Connectors: 18" (46cm) Leads
  • Material:
    • Case: High-impact ABS plastic
    • Contacts: Iridium-plated
  • Contact Rating:
    • 1.0A@10VDC (max.)
    • 10W (max.)
  • Operating Temperature: -15° to 160° F (-25° to 70° C)
  • Switch Cycles: 50 Million (0.1mA@5VDC)
  • Dimensions:
    • Switch: 1-3/16"x 15/16" (30x x 24 mm)
    • Magnets: 1-3/16"x 15/16" (30x x 24 mm)
  • Magnet: Rare-earth neodymium alloy
  • Credentials: UL, RoHS
  • Warranty: 2 Years