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

This was needed to replace a failed magnet switch which Id bought about a month earlier to make an indicator light for my garage door. I wish Id gone this route the first time. This item is very high quality and was easy to install as it is made for this application.

need a good masonry drill bett

I wish I had found this years ago. This works perfectly on the top edge of my garage door

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

Works on my DSC system without any problems.

Good performer. Magnet will reach over 2 gap and still activate switch.

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.

Very durable. Utilized for double garage doors to detect (open/close) positions. Connected reed switches in series to controller to operate and monitor garage door utilizing WiFi.

MUY BIEN

Used it to replace my ADT floor switch that went out. Was nice having the option to use as NO or NC as I didnt know what my existing switch was. Easy to install and work good. I wasnt going to replace the magnet but this one was a lot nicer so I opted to use it.