Yes, you can connect GDB remote device either to the back of the wall button or the terminals on the opener.
38013R adapter is needed for Genie Series III opener. Here’s how to connect 38013R adapter. GDB——[wire]——38013R adapter—–[wire]—–Genie opener terminals For 38013R adapter, Make sure the side with “Opener” label is connected to Genie opener terminals.
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GDB monitor works with tilt garage doors and sectional garage doors. GDB monitor doesn’t work with roller doors. If you have any question, contact us at firstname.lastname@example.org