Chamberlain G801CB-P LiftMaster/Craftsman 801CB Garage Door Opener Replacement Safety, Includes 2 Sensors, Mounting Brackets and Hardware, 1 Pack, One Color

Works great! Going through my amazon history and thought these should rate a review...Replaced my old garage door sensors about 5 years ago with these and they've worked great ever since! Easy to install, direct replacement. Solid purchase. Good price!

I consulted a youtube video to see what was wrong with my garage door. After the recent Texas freeze, it started acting up where it would go partly down and then come back up and blink at me 10 times. Turns out that the main culprit are these little guys. Yes, you can just shut the door by manually holding down the garage door button inside, but that gets annoying when you are in a rush to leave. These little suckers are fairly easy to install, just match the proper color wires, and make sure they are aligned with each other. Some negatives or things to watch out for are:1. The wires for the sensors are really weak. Just some small twists will cause them to break. They have a lot of give on them, so if they break just keep separating them and try again.2. The clamps that come with these are pretty good, but the above wire weakness will cause them to break easily and the clamps are one use only. That's kind of a negative, because you only get four of them. So if you clamp and the wire breaks, you are screwed. I had some wire covers from my previous installation, so I just used those, but you may want to pick up wire covers in the very real instance the sensor wires break in the clamp.All in all, this was a great fix. My garage door works like new and I saved myself hundreds of dollars having a technician come out. You can do this! Save yourself some money and just do it yourself. There are dozens of youtube videos showing you how. It took about 15 minutes to do, and that was only because the stupid wires would break and I would have to separate and start over. But with care, you can probably do it in like seven minutes. No, not six...seven! ;)

My garage door was having problems closing every winter due to false obstruction detection. I found realigning the existing sensors did not help. After researching, I discovered that the infrared light can get weak over time and cold can affect it as well.My main concerns with replacing the sensors were compatibility with my 1996 Craftsman garage door opener and the effort to install new ones. The Chamberlain sensors turned out to be an excellent choice. This unit comes with a set of wire connectors. I simply clipped the existing wires, stripped both ends, and connected to the new unit. These worked with my craftsman and have given me no issue.I also did not need to mount a bracket to the wood. The sensors brackets that come with this unit snap right on to the outside of the garage door track. At first it looked as if the bracket was too small to snap on, but I was able to apply force and it snapped on perfectly as shown in the photo. I will eventually remove the old sensors show in the photo and move the new one's down to the recommended 4"-6" height.I wish I had replaced these a few years ago when I first started having problems. Now that I know these work, I have ordered another pair for my other garage door to resolve the same issues.

A determined dog escaped her kennel and spent a few hours trapped in my garage, and tore one of the sensors off the wall and severed the wires. Dang dog! After some research, I determined these would work and ordered them. Once they arrived, it took me a few minutes to figure out how to install them (I've never done this sort of thing before). The hardest thing was stripping the wires without wire strippers, but once I got through that the rest was easy! The brackets don't work for my garage because there isn't enough clearance on the sides between the rail and the wall, but fortunately the sensors attached easily to the existing brackets from the previous sensors. Overall, these were very easy to install. The hardest part was ensuring they would work for my opener (and that wasn't exactly rocket science to figure out).

This review will be in two parts. The first part will be my review of the quality of the product. The second part will be some useful tips. I own a Sears Craftsman Garage Door opener, model 139.53525SRT 1/2 hp. The part that died was sensor 41A4347. That part is no longer available and so I researched every possible solution until I came upon this replacement sensor on Amazon.Product review:Positives: It installed in about fifteen minutes. It worked perfectly. I questioned whether or not to use my existing bracket and modify it, but the bracket that came with it attaches to the rail effortlessly and so I decided to give it a try. I left the old bracket on and installed this one right under it.Negatives: The wing nut attachment is far less firm than my last sensor and I suspect it will vibrate loose, but I am waiting to see before I do something more. The wire splicers it came with didn’t work so I just twisted the wires together and used electrical tape. I may get better connectors.Tips:I tested the sensors first by touching the wires to the actual garage door mechanism to make sure they worked and that I had both the sensor and wire order lined up correctly before I did anything. On the yellow sensor the wire colors matched, but on the green sensor it was the reverse. This is important: the green sensor will not remain lit until it is aligned with the yellow sensor! I have seen many reviews complaining that one sensor doesn’t light up and this is likely an installation error (if they got passed the wire colors). When I tested the connection the green sensor blinked once and that’s how I knew it was right. Only after I got them lined up and secured did it stay on.Essential tools you need: Wire stripper, wire cutters, pliers, and possibly electrical tape.