One GarageDoorBuddy supports up to 2 openers. In this case, you only need to get one.
I have two garage door openers, how many GarageDoorBuddy do I need?
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There is a small hole at the bottom of the monitor, use a pen or paper clip to hold the button inside the hole. When you hear 4 beeps, release
Why does GDB remote have two sets of wires?Why does GDB remote have two sets of wires?
The remote can control two garage door openers. The longer set of wires is for those who have two garage openers.