M MARANTECGarage Door Openers 86850 Photo Eye System by

They worked perfectly, easy to install.

Our garage door started refusing to close at a certain time of day. Turned out the photo sensor was getting hit by sunlight and could no longer detect the photo beam while the sun was on it. After looking around the web, I found that this sensor&transmitter was supposed to be immune to such problems. So I ordered a set.Installation was very easy with one slight glitch: The wiring was inside sheetrock. I had no interest in running new wires on the surface of the sheetrock, so I cut off all but a foot of the cables attached to the new devices and spliced the devices to the existing cables, making sure to splice the marked wires together and the unmarked wires together. It worked perfectly. Here are my thoughts about the new sensor and transmitter:=They are each sealed inside plastic surrounded by metal and are far less fragile than the old set=They are, at least in our case, immune to the direct sunlight=Splicing is easy but remember to tape or use wire nuts on the splices=The cost is a small fraction of the cost to replace the garage door opener=They look a lot better as wellOur garage door is 100% functional again, and I couldn't be happier with the new arrangement. Big thumbs up for a well designed and relatively inexpensive upgrade.

Utilisé pour porte de garage.

This fixed my Marantec Garage Door Unit like a champ! This was my first ever electrical project and it was simple. The sensors connected flawlessly. I didn't even need to get them in perfect alignment for the garage door to open and close again properly. This saved me at least the $150 cost that one company I called wanted to repair it and probably the $250 I would have spent to go ahead and replace the whole unit with a new Chamberlain. My only complaint was that the directions didn't really tell me how to splice the wires from the old sensors to the new, but a simple Youtube video and some common sense was all I needed to figure that out. Additionally, having had the old eye sensors, this now fixes the problem I had earlier with the garage door not closing twice a day due to the sun hitting it in a particular angle at those times. If you've got the old sensors buy these and replace the old ones. They are so much better and worth it.

Either it’s amazing or the company bought through. But the communication for customer service is horrid. The item is as described but I’ve been waiting over 3 weeks for a 2-3 day return email.