LiftMaster 041D3452 Limit Switch Assembly The unit will feature a

The unit will feature a yellow learn button

Installation/safety manual

Also known as 30B0638

Each entrapment point should be protected with its own device

LiftMaster 041D3452 Limit Switch Assembly The unit will feature a041D3452 is a one piece limit switch replacement kit. Compatible with various garage door openers manufactured after 1995. Check the manual for your specific model number before ordering to ensure compatibility. Also known as 41D3013, 41D3452 Product Details Compatible with models 1140, 1145, 1146, 1150, 1155, 1156, 1160, 1200 Series, 1240, 1245, 1245 266, 1255, 1255 166, 1255 266, 1246, 1250, 1250 266, 1256, 1260, 1260 166, 1260 266, 1270, 2245,