Hi Hugo,
The Dexen adapter that you've asked about is intended as a replacement part for Dexen electronic ignition valves. To work with your units, they would need to already be electronic ignition, non-standing light set-ups. It will not work on stand millivolt valves.
If your goal is to save time and money by no longer having to replace batteries in your standard millivolt remote set-ups, I might recommend our
Empire FREC. This remote still requires batteries in the handheld transmitter. But, the receiver no longer takes those 4 AA batteries and simply plugs into the wall.