Chamberlain Whisper Drive Model 248754

Tags: #<Tag:0x00007f930c155558> #<Tag:0x00007f930c155490> #<Tag:0x00007f930c1553c8>

Chamberlain Whisper Drive Model 248754 is compatible with Garadget and like many other Security+ (non 2.0) Chamberlain openers connects to red and white terminals (two on the left).

User Manual can be found here