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Sensor Type
Door / Window
Contact Closure / Relay
Normal State
Normally Closed
Ease of Installation
Beginner (Installs < 10 minutes)
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Monitor Doors, Window and other Possible Entry Points to your Property
Enforcer Surface-Mount Magnetic Contact Sensor Switch - White
Enforcer Surface-Mount Magnetic Contact Sensor Switch - White
Enforcer Surface-Mount Magnetic Contact Sensor Switch - White
Item# 77414
Price: Normally $2.99 
Hot Deal $1.63
Free shipping on orders over $175 - See Details


  • Use on normally closed (N.C.) circuit systems
  • UL Listed for security systems
  • 1 inch (25 millimeter) gap

Essential Info

The most basic sensors of any alarm system is a door and window magnetic contact switch. The Enforcer Surface-Mount Magnetic Contact Sensor Switch is for normally closed circuits, which means that the when the magnets are lined up, the switch is closed. The magnetic contacts can be hardwired to almost any security system as a way to monitor doors, windows, and sliding doors. These particular sensors feature quick-connect, gold-plated wiring terminals with no wiring leads inside the wall, making for an easy install and a longer life that other similar sensors. They are extremely compact at only 2" long and 1/4" tall and can be mounted using the included screws or adhesive tap with up to a 1" gap between sensors.


What's Included

  • 1x - Enforcer Surface-Mount Magnetic Contact

  • Mounting hardware

  • 1x - Owner's Manual
  • Specifications


    Manufacturer Product No.:SM-431-T
    Sensor Gap:1.0 inch (25 millimeters)
    Dimensions:2 inches x 3/8 inches x 1/4 inches
    Terminals:Gold-plated screw terminals, quick-connect
    Circuit Compatibility:Normally closed (N.C.)
    Certifications:UL Listed

    Important notes:
    Defective exchanges for identical item within 30 days of purchase. After 30 days, please contact the manufacturer.
    Manufacturer contact information: SECO-LARM USA Inc, Tel: (949) 261-2999


    12 Ratings
    5 star: 58%  (7)
    4 star: 25%  (3)
    3 star: 8%  (1)
    2 star: 8%  (1)
    1 star: 0%  (0)
    Average Customer Rating
    (12 customer ratings)
    Share your thoughts with other customers
    EDWIN -- mustang, OK   6/12/2014
    since I cut the wire off the old switch this switch made it easy to connect the new switch.
    JAMES -- magnolia, TX   6/9/2014
    These contacts were exactly what I was looking for they worked great!!!!!!!
    SHAWN -- zanesville, OH   6/14/2012
    So far they are working great ,and easy to install.
    JAN -- jacksonville, FL   7/18/2011
    I received my order promptly and with correct amount. Very easy to install and works as promised. Thanks
    TIM -- seaside, CA   3/23/2010
    Periodically fails
    ROGER -- medina, TN   12/17/2009
    Great company to do business with. Fast shipping. Switches are easy to install with great response and dependability.
    ANDREW -- sunnyvale, CA   12/3/2009
    Product performed as expected. Purchase online is easy.
    SUSAN -- philadelphia, PA   10/11/2009
    Great item. Worked well with my system. No problems at all. Thanks.

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