Proven to save energy, this Nest Learning Thermostat memorizes your favorite temperature settings at home and automatically adjusts, using the Nest Temperature Sensor to satisfy your temperature preferences. You can control the temperature through the Nest app from your smartphone or use this Wi-Fi thermostat's voice assistant when you're at home. Offering up to 12 percent savings on heating bills and 15 on cooling, this smart thermostat pays for itself in less than two years. Nest learning thermostat can pay for itself in less than two years Turns itself down...