Awhile back I ordered this stat. I installed it and hooked it up to the Elk using the serial interface. Everything works. Fast forward to today and I am looking at tying everything together (see previous post) and I started to doubt whether or not this stat has Zigbee capabilities. If I go into the setup menu it has all of the Zigbee options and I can even scan for devices. Is it possible that this simply has the same firmware as the Zigbee model and no actual radio, or does this include the radio as well, even though they have a separate Zigbee model?