Google Nest Thermostat E and Nest Temperature Sensor (2-Pack)

Saving energy starts with your thermostat. Your thermostat controls half your energy bill -- more than appliances, more than electronics. So shouldn't it help you save energy; With proven energy-saving features, the Nest Thermostat E can help you save from day one. With the Nest Temperature Sensor, you can let your Nest Thermostat know which room should be a certain temperature at a certain time of day.