Right now at Home Depot, you can get the Nest Temperature Sensor (for Nest Learning Thermostat and Nest Thermostat E) for only $25 (reg. $39). You save 36% off the retail price for this thermostat room sensor. Plus, this item ships free. This is the lowest price we could find online by about $14. The Nest Temperature Sensor allows you to control the temperature of individual rooms in your home. Sales tax is charged in most states. Deal expires September 2, 2018. Must have a Nest Thermostat to use this device (sold separately).