SM-226L-3Q Seco-Larm Overhead Door Mount N.C. Magnetic Contact w/ 3 Wires for N.O./N.C. Applications (One Pack)

(1771 Reviews)

Price
$14.99

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(40000 available )

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80 Ratings
74
3
1
0
2
Reviews
  • P. Dudek

    > 3 day

    Perfect switch to be used in a basic DC electronic circuit that detects if the garage door is opened or closed. Provides a visual piece-of-mind that the door is closed,

  • Greg

    > 3 day

    10/10 would bang

  • Terry

    Greater than one week

    Had one installed, but it split in half from winter weather freezing it

  • E. Stoehr

    > 3 day

    Well made. Fast Delivery. I mounted it over my garage door on the wall and the Magnet bracket to the door. Will last forever up there. It has a strong magnet and activates when the Garage door opens an inch. Hooked to to a low volt LED light inside the hall leading to/from garage. Lites the way! And warns if garage is ope.

  • Customer Service Anyone?

    Greater than one week

    I installed two of them on my garage doors in series with my thermostat to turn off the garage heater when the doors are opened. The install was a breeze (used the black and green for n.c.) and they work flawlessly. The pieces seem to be of pretty good quality, and I assume theyll last for years. These are cheaper elsewhere, but without prime shipping.

  • Sheridan Stokes

    > 3 day

    Using as a sensor with a Raspberry Pi. Working perfectly so far. Straightforward install.

  • Richard K.

    > 3 day

    Good experience. No problems.

  • stephen

    > 3 day

    this shipped really fast worked perfect and was a more heavy duty design than the one it replaced.

  • Jim Breeher

    > 3 day

    I used these switches to put indicator lights in the house so I would know if the garage doors are open or closed. I have used a wireless type of system before, but many times got error message. These wired sensors were installed on top of wall above garage door with magnetic on the door. I wired them to a green light for close and red light for open for each door, using the N/C and N/O contact to turn on the correct light. They worked great and now have a wired system to make sure garage doors are closed.

  • Dean

    Greater than one week

    just didnt work for me... to bulky and couldnt find a way to mount it for what I was trying to do. Quality seems good, although id like them to discuss the quality of the switch since that part is hidden.

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)

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