Google Temperature SensorMost homes aren't the same temperature in every room. With the Nest Temperature Sensor, you can let your Nest thermostat know which room should be the most comfortable. Just place it on a wall or shelf and get the right temperature, right where you want it. Requires a 3rd generation Nest Learning Thermostat. This compact sensor brings room by room intelligence to your heating and cooling, so comfort follows you as you move through your day. Its