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

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Good

This worked great on my new garage door. I use it to indicate if the door is open or closed on my detached garage in the house.

Great product and I will definitely buy it again because there is no alternatives.

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 doesnt. 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.

It works on my garage door. Now I can tell when it is open. Good Product.

Armored cable and included magnet bracket make this switch well suited for garage doors and other applications that may have large gaps when closed. Both normally closed and normally open connections are provided for compatibility with all systems. Ive had one installed for several years with no issues.

Excellent product. Far better than the run of the mill magnetic switches I first tried. These are very rugged and well made. I highly recommend them.

This worked great replacing the cheap magnetic contact that came with my nexx home wifi opener. Good quality and solid. Ive been using this for about 6 months now and have no more false readings of my garage door being open when it is not.

Great product for the price