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Seco-Larm

Seco-Larm SM-226L-3Q Overhead Door Magnetic Contact, 2.75-inch Gap, Open/Closed Loop Circuits (3 Wires), 24" Armored Wire Leads, Weatherproof

  • Based on 237 reviews
Condition: New
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Availability: In Stock.
Fulfilled by Amazon
Arrives Saturday, Sep 13
Order within 19 hours and 11 minutes
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Features

  • Magnet in gray ABS case mounted on L-shaped bracket
  • Use on large doors (garage) or gates
  • NO/NC contact switch
  • Withstands heavy vehicle pressure without damage

Description

Switch contained in low-profile cast aluminum housing anchored directly to the floor and curved, so heavy vehicles can cross over without damaging it. Magnet in gray ABS case mounted on L-shaped bracket. 24" (61cm) wire leads enclosed in stainless-steel cable. SM-226LQ -- For closed loop circuits. SM-226L-3Q -- NO/NC contact. GAP: 2-3/4" (70mm). Dimensions: Switch — 4-3/8"x1-3/4"x7/16" (111x44x11 mm)

Color: Gray


Brand: Seco-Larm


Material: Aluminum


Item dimensions L x W x H: 9 x 5.5 x 2 inches


Unit Count: 1 Count


Mounting Type: Door Mount


Manufacturer: Seco-Larm


UPC: 676544006473


Product Dimensions: 9 x 5.5 x 2 inches


Item Weight: 8.4 ounces


Item model number: SM-226L-3Q


Is Discontinued By Manufacturer: No


Date First Available: January 18, 2011


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Saturday, Sep 13

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

  • Klarna Financing
  • Affirm Pay in 4
  • Affirm Financing
  • Afterpay Financing
  • PayTomorrow Financing
  • Financing through Apple Pay
Leasing options through Acima may also be available during checkout.

Learn more about financing & leasing here.

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Top Amazon Reviews

    • It works great!
Good price!
Reviewed in the United States on March 6, 2024 by Rick Miller
    • Excellent Product
Used these as part of a diy garage door system so that I can tell at a glance whether I remembered to close the garage door. This product is very well built and I expect it will last for a long time, even in my humid coastal environment. It was very easy to install at each garage door.
Reviewed in the United States on September 19, 2023 by Peter B.
    • Great product, work good.
Very nice.
Reviewed in the United States on January 22, 2024 by Keltu
    • It worked very well
Compared to other magnet sensors this product works very well
Reviewed in the United States on January 22, 2024 by Mahdad S.
    • JUST GREAT!
Product was easy to install and it works perfectly fine.
Reviewed in the United States on July 4, 2024 by Jose arana
    • Well built.
Very well built. I used this to trigger indicator lights on our driveway gate. Both parts mounted to post and gate with no modifications necessary. The included bracket has plenty of mounting options. I was concerned at first that with the gate being steel if it would affect the magnet, it doesn't. Also, the switch does not have to be mounted as close as possible to the magnet, it will work when the components are about 2 inches apart. Had to mount them farther apart than expected and it still worked fine. The only recommendation I would make to the manufacturer is that the recessed areas to mount the switch be enlarged slightly. The recess is too small to get a socket on a hex head screw making it necessary to use Phillips screws. ... show more
Reviewed in the United States on January 15, 2022 by Mark S.
    • This is the way these things should all be
This is a great switch. The switch part is both lightweight and extremely tough; the magnet part is easy to mount and also light. The activation distance is around two inches that makes for finding a nice mount point easy. Additionally, the magnet can be reversed on the mount if you need a little more distance for a weird mounting spot. The armored cable protects the signal wires, so if you run over it with the car it will still work. Since it has normally open and normally closed outputs, it will work in any wired alarm application. Really nice device. ... show more
Reviewed in the United States on February 12, 2016 by David Thompson
    • Works perfectly
I bought this to drive a "garage door open" warning light in my residence. The sensor is designed to be installed on a garage floor, but I chose to install above my rolling door. This meant that the supplied magnet bracket didn't fit, so I built a custom bracket out of sheet metal. Combined with a power supply and blinking LED, I got just what I wanted for less than $30. There are lots of mechanical reed switches available for far less, but I wanted something more robust so I'm not replacing it in a year. I'm completely satisfied. ... show more
Reviewed in the United States on December 27, 2021 by chuck

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