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Sensor Type
Door / Window
Contact Closure / Relay
Outdoor Rated
Normal State
Normally Closed
Ease of Installation
Intermediate (Installs < 60 minutes)
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No More Ugly Alarm Contact Switches!
SECO-LARM SM-207-5Q/W Short Round Magnetic Contacts
SECO-LARM Enforcer SM-207-5Q/W Short Round Magnetic Contacts
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Installation Diagram Installation Examples Compact Size
SECO-LARM Enforcer SM-207-5Q/W Short Round Magnetic Contacts
Item# 7359
Price: Normally $3.99 
Hot Deal $1.50
Free shipping on orders over $175 - See Details


  • Use on closed circuit systems
  • Ideal for new construction
  • Completely hidden once installed
  • Use on doors, windows, and sliding doors

Essential Info

Eliminate the telltale signs that you have an alarm system installed with SECO-LARM's Short Round Magnetic Contacts. Unlike conventional contact switches, these switches are completely hidden. The Hidden Mount Short Round Magnetic Contact Switch is 0.78 inches long and is ideal for use on windows and sliding glass doors. The magnet needs ¾ inches of material (wood, aluminum, vinyl) around the frame to mount into. Each contact has an operational gap of 3/8 inches. Simply drill a 3/8 inches hole in the edge of a door or window jamb and press fit. The wires are can be passed through the jamb and framing and run over to the alarm system controller. Both the switch and wire are completely invisible when the door or window is closed. Mount the magnet in the door or window so that the two are in contact with each other when the door or window is closed.


What's Included

  • 1x - Hidden Mount Short Round Magnetic Contact Switch, Normally Closed
  • 1x - Owner's Manual
  • More Info

    The switch is waterproof and enclosed in an epoxy compound that is moisture and corrosion resistant. The high-impact plastic case withstands hammering in of the switch and magnet. Comes with 15 inches of 22AWG wires and handles up to 1 Amp at 10 Volts DC. It can reliably operate in temperatures between -15° and 160°F. Rated for 50 million openings and closings, this thing will never wear out!

    Contacts are closed when magnet and sensor are together.

    Long Round Magnetic Contacts are also available.



    Manufacturer Product No.:SEC-SM2075WH 3/8 inch STUBBY
    Compatibility:Use on closed circuit systems
    Rating:Up to 1 Amp at 10V DC
    Operating Temperature Range: -15°F to 160°F
    Length:3/4 inches
    Approval: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


    Installation Diagram  Installation Examples  Compact Size   
    Installation Diagram  Installation Examples  Compact Size   


    150 Ratings
    5 star: 77%  (116)
    4 star: 16%  (24)
    3 star: 5%  (8)
    2 star: 0%  (0)
    1 star: 1%  (2)
    Average Customer Rating
    (150 customer ratings)
    Share your thoughts with other customers
    BRIAN -- norwood, NC   12/7/2013
    The extra length on the attached wires is nice,, and I like how short the contact and magnet is. The price is very acceptable also.
    GARY -- merced, CA   8/22/2013
    Prompt shipping, within a few days. Reasonable price.
    DENNIS -- westlake, OH   6/15/2013
    just what I wanted,& timely service
    ROBERT -- palm harbor, FL   6/14/2013
    Just what I ordered for some windows I replaced. No problems.
    DAVID -- enfield, CT   5/30/2013
    just what i issues
    WILLIAM -- pinckney, MI   4/14/2013
    I haven't installed these yet, but had to give a rating before proceeding in rating other items from SH.
    ROBERT -- columbia heights, MN   3/17/2013
    Good value, fast delivery. Thanks.
    JOSEPH -- lenoir, NC   3/14/2013
    worked great shipped fast. happy customer
    WILLIAM -- poteau, OK   2/17/2013
    Received in good condition,in very good time. Haven't used item yet,But satisfied with product.
    AL -- wilmington, OH   6/29/2012
    Needed extra magnets for slider door 2nd position switch control. Smarthome was unable to supply the extra magnets which are available from Seco-Larm. Had to order complete duplicate switch/magnet assy's. from another company.
    TROY -- lehi, UT   4/13/2012
    Great price
    JOHN R. -- deep river, CT   3/20/2012
    Great replacement contact. Installation was a breeze.
    STEPHEN A. -- waukegan, IL   3/18/2012
    These contacts integrated perfectly with my existing wireless transmitters and were very affordable. Shipping was outstanding as well...very reasonable and very fast.
    CONSTANCE P. -- kansas city, MO   12/7/2011
    Fit perfectly!Arrived on time. Thanks!
    TOM -- hudsonville, MI   11/24/2011
    I needed these for my old radio shack, safehouse alarm sysyem. Radio shack no longer carried them. Was great to find them here!
    DONALD -- henderson, NV   9/1/2011
    Simple easy to install.
    MICHAEL A -- houston, TX   7/31/2011
    Replacement security item worked fine. No instructions from vendor but intuitive setup worked correctly. Shipping in padded envelope okay but not exceptional. No tracking info.
    MARCUS -- memphis, TN   7/18/2011
    Took less than 5 minutes to replace the bad half (the wired half) of a 13 year old contact. I ordered two incase another one goes bad. Items shipped quickly and were a 100% match to the ones installed in the house...
    ROBERT L -- arlington, TX   7/7/2011
    Everything arrived packaged well and as described. Thanks!
    AMBROSE -- oakland, CA   7/3/2011
    Good price, nice products and fast shipping.


    Long Round Magnetic Contacts  Garage Door Contacts  Door, Window & Floor Sensors   
    Long Round Magnetic Contacts  Garage Door Contacts  Door, Window & Floor Sensors   

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