Home Depot offers the Emerson Sensi WiFi Programmable Digital Thermostat, model no. UP500W, bundled with the Emerson Wall Plate, model no. F61-2663, for $99.99 with free shipping. That's $38 under the lowest total price we could find for these items purchased together elsewhere. (For further comparison, we saw the thermostat alone for $94 last November.) The thermostat allows for WiFi control via Emerson's iOS or Android app and is compatible with Amazon's Alexa for voice control. Two AA batteries are required, included. Deal ends October 18.