Review on 🚪 Refoss Garage Door Keypad Wireless: 310/315/390MHz, Chamberlain LiftMaster Craftsman Compatible by Alex Britton

I ordered this to use on a 25 year old garage door opener (made by Chamberlain) with a green 'learn' button. I did some research and found it right for my knife. I was struggling with programming and was considering returning. Something made me turn the pages of the programming manual, and here it is, clear as daylight. Five minutes later it was programmed/paired with my opener and I mounted it on the wall. I recommend this block if it fits your opener. If you have an old Craftsman/Chamberlain opener from the mid 90's with a green button it will work fine with your opener.