Amazon offers the Ecobee Ecobee3 WiFi Thermostat with Remote Sensor
, model no. EB-STATE3-01, for $228.36
with free shipping
. That's a buck under our mention from three weeks ago and the lowest total price we've seen. (Outside of the mention below, it's a current low by $21.) It includes one remote sensor, and supports up to 32, which track temperatures across your home, and adjust temperatures accordingly. It also features a color touchscreen, timer, and a remote control cell phone app.
A close price: Best Buy
offers it for $229 with free shipping.