Digi-Code-Universal Sensors CR2149 Universal Garage Door Opener Safety Beam Sensor

I purchased units like this many years ago to replace the original units that came with my Moore-o-Matic XX150 garage door opener. They quit working about 3 years ago, though I was able to make them work by taping (and wiring) them directly together. Despite cleaning lenses inside and out, I was unable to get these units to work at the horizontal separation distance of the garage door frame. The old units were Digi-Code CR-2147 (transmitter) and CR-2148 (receiver), so I searched online and found Digi-Code CR-2149 on Amazon. Just received the box last night. The part number CR-2149 was on the box, which, not surprisingly, contained CR-2147 and CR-2148, identical to units I purchased long ago. Installed these on original brackets and they worked immediately, without further adjustment. What this means is that the older version of these units, while still functional, must have developed weakness of either signal transmission or signal reception, or both. So, these units are a good solution at not too high a price, but you may expect to replace them after a number of years. There is an online reference for a different unit that addresses this subject, describing a repair of adding a parallel resistance to the emitter and increasing the signal, but that is a little too DIY for me. I should also note that the receiver unit exhibits two external wire loops, yellow and black. I clipped the yellow loop, as I had done on the older units. Instructions that came with the units counsel clipping black wire for black Moore-o-Matic units, and yellow for yellow. My original Moore-o-Matic units were yellow.

We have a Stanley garage door opener -- no doubt the original from when they built the house. So when one of the sensors (a small, slim one) broke to the point where I couldn't get slack from the wire that goes to the bulb, I was at a loss, since Stanley's no longer around, and most places I'd checked for new sensors said they weren't compatible.Pros:+The most difficult part about installing them was adjusting the new height for the brackets (since the original was slim).+As soon as i got the brackets the right height, aiming them was SO easy.+They're 100% compatible with an old Stanley garage door openerCons:-The instructions aren't that fantastic. I mostly had to figure it our myself.-I had to do some advanced electrical work to hook the one into the wires coming from the door opener (opened it up, etc.)-I tried to use the previous receiver (since it was already all hooked up), but it wouldn't work. It worked once I replaced them all with the new ones though.

The old Vemco garage door opener is probably original to my house from 1998. All of a sudden the door would not go down unless you held the button, and it was impossible to close the door from the outside with a remote. These universal door sensors were easy to install in about 10 minutes, and now the door works perfectly. There's no reason the old door opener will not continue to work until the motor burns out. I'm very happy with how easy this was to fix!

I used this with Stanley Garage Door Opener. It was easy to install and get it working however, the instructions have a lot to be desired. Here's what they don't tell you but is important:1. My old Receiver Unit had 4 wires whereas the new one has 2. Just connect both positive wires together to the +ve of the new unit and both negative wires to the -ve of the new unit.2. While aligning the units, when you see red lights on Sender and Receiver units, it is supposed to be ready to go. The units show red light even when both sides are barely aligned in which case it wont operate properly. Therefore, try to play with the alignment and it should work.Other than that, it was easy.

I have a Stanley garage door opener. The sensors were easy to install and worked great with the remote for a little over two weeks, then they started having intermittent problems. I had to hold the button down on the remote until the door completely closed, otherwise it would stop closing. After a little over three weeks, it quit closing even when I held the button completely down. It would close about two feet, stop and go back up. I had to keep hitting and holding the button down. It would continue to close a few feet, stop and open again. Even though the sensors were showing a solid light beam, I tried adjusted the sensors and plugging and unplugging the sensors from the opener. They finally quit working with the remote completely. Even with the installed button for the door opener inside the garage, I have to hold it completely down and the door will still stop and start continually. I am returning, very disappointed. Using the button in the garage, the door closes without any problems without the sensors installed.