GE 12726 40 amp outdoor switch

Now that’s interesting and sorry for my assumption. As for how to get it working. I am not much help again since I don’t know much coding. You can try this little Z-Wave tweaker and see all the parameters of the device and there are a couple of Z-Wave dual relay module DTH with simulated switches to operate the 2 loads. Maybe give it a try and see if you are lucky.