Magnetic Switch Alarm Sensor Overhead Garage Door Contacts with L Bracket

After noticing an increase in break-ins in our gated community, many of which were captured on Ring cameras, we decided to extend our Honeywell Home alarm system to include our courtyard gate for added security. These sensors were the perfect solution, and I’m thrilled with how well they’ve worked.The installation process was straightforward once we paired the sensors with the compatible wireless transmitter (we used this one: https://www.amazon.com/dp/B002MA8GKW), and the system programming instructions provided by other reviewers were spot-on. The sensors integrate seamlessly into our alarm system, and once added, they function the same way as the other wireless window or door sensors in our home.However, I did encounter a minor issue during installation. Initially, we mounted the sensors directly to the iron gate, and this led to a problem where the sensors would randomly activate, causing false alarms. After some troubleshooting, we realized the issue was due to an interaction between the magnets in the sensor and the metal of the gate, which was triggering the alarm.The solution? We mounted the sensors with a small insulator (just a piece of plastic or rubber - see pictures) between the sensor and the gate, and since then, the system has worked flawlessly. For the past 4 months, we’ve had ZERO false alarms — just the peace of mind that comes with a secure gate.I highly recommend this product for anyone looking to enhance their home’s security, especially if you have access points like gates or fences that need monitoring. A few installation tips: ensure that your alarm system supports wireless sensors (most systems installed within the last 20 years should be compatible), and if you’re mounting these sensors to metal surfaces, remember to use an insulator between the sensor and the metal to avoid interference.This was a relatively easy, inexpensive way to expand our system, and we couldn’t be happier with the results. Hopefully, this little tip helps others avoid the frustration of false alarms and the need for multiple trips from your installer.

Installed this to replace the finicky reed switch that came with "smart" garage door opener kit. That reed switch needed the magnet to be closer than physically possible. Connected it to existing wires using orange button splices (no wire striping needed). EZ

It works and is as advertised. I've had no issue with it. I only gave it 4 stars because it appears to be a cheap knock-off of a better more expensive product. As there are no moving parts it should last but I would probably upgrade if doing again. Installation was ok. A little crude with sharp corners but it works.

Very sturdy. Installed four. Good range between the magnet and sensor. Attached the sensor above the door and the magnet to the top of the door on the metal top. Will use the excellent bracket for other projects.

Good distance triggering. Estimate about 1.5 inches plus. Concern since so many vine free product reviews and no real customers like me

These will work anywhere you have a hardwired alarm system. We use DSC Neo everywhere, and these work just fine. Make sure you reinstall your end of line resistors so the panel recognizes this.Mounting was pretty easy and straight forward. Door mounted side is completely adjustable to make alignment of the two halves easy. My only complaint is if you use tap cons to mount these to a concrete floor, hex head tap cons will not fit flush into the circular grooves for the screws. I don’t see pan head working much better either. The heads are not high enough to pop a tire or anything but worth noting. The sensor is over to the edge far enough it’s mostly a non issue.

Garage door doesn’t have to be perfectly aligned for it 2 make contact. Built well. Pays for itself over and over by not having to go out and Jack with the door to make contact.

Worked great. The magnet is strong enough that the switch detected it about an inch away.