Works exactly as I need it to. My older Guardian opener uses their own signaling system that doesn't work with many universal remotes or my car's HomeLink. I added this and can now use other 3rd party keypads and now I can use my car's built-in remote buttons. Also works well with a Chamberlin MyQ (not wired up directly of course, but during setup in the MyQ app just say you have a Genie garage door opener and it'll pair correctly like a universal remote).
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