Google Nest Temperature Sensor 3 Count Pack Perfect working condition. Selling since I got a new HVAC and the Google Nest thermostat isn’t compatible. Entry key for each is on back inside panel. Meet the Nest Temperature Sensor. Most 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 a certain temperature at a certain time of day. Just place it on a wall or shelf and get the right temperature, right where you want it. Dimensions (Overall): 1.9 Inches (H) x 1.9 Inches (W) x .8 Inches (D) Weight: .1 Pounds Features: Voice Control Assembly Details: Adult Assembly Required, Tools Not Provided Mount Type: Screw Fittings Includes: Instructions, Mounting Hardware Operating System Compatibility: Google Assistant Wireless Technology: Bluetooth Compatible With: Google Assistant Minimum Operating Temperature Fahrenheit: 32 Maximum Operating Temperature Fahrenheit: 104 Motion Detection Angle: 0 Degrees Power Source: Battery Battery: 1 CR2023 Lithium, Required, Included