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

Good quality unit

10/10 would bang

Nice unit, solid construction

Worked as described.

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.

Magnet bracket works fine on probably 90% of garage doors. Mine, unfortunately was in the 10%. Had to rig up a method to attach the bracket. Would be nice if the bracket was more a of C shape rather than an L shape.

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.

Great purchase.

Triggers about 2-3 inches away ! Built really well ! worth it $$

Solid piece of work.. was easy to use to set up mu open garage door alarm/ light.