Actually, I've seen the CT30 on Ebay for as low as $65.
One caveat I
just discovered, though. There's apparently been two versions on the market: one with the RTMV-01 USNAP module, and one with the RTWG-01 USNAP module.
RTMV-01 = GOOD
RTWG-01 = BAD!If I'd known about the hardware change issues, I'd have mentioned something when I first brought it up.
Edit/Update: Did more research on the situation, it appears to mostly be a problem with Amazon sellers and mislabeling/ignorance on the part of those sellers. The RTWG-01 USNAP module is for
Z-Wave 900Mhz home automation systems, which is why all the problems. The thermostat was designed to either stand alone, support WiFi, or Z-Wave apparently. So, not a problem with the unit
itself, just idiot error somewhere along the line.
These units are available rebranded from several sources, including as the
3M Filtrete model 3M-50 at Home Depot.