Update: Deal over.

Honeywell Programmable Thermostat – Link

This was selling for $49 yesterday and is now its lowest ever on Amazon.

• Compatible with 2 heat 2 cool conventional systems and 2 heat 1 cool heat pump systems. This thermostat is not compatible with electric baseboard heat (120-240 volts)
• 5-2 scheduling lets you create unique weekday and weekend programs, or schedule the entire 7-day week the same. And your program is retained in the thermostat in the event of a power outage
• Smart alerts provide change reminders for air filters and low batteries in your thermostat. (This thermostat requires 2 AA batteries which are not included)