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The Ecobee Smart Sensor 2 Pack is a smart home product designed for comfort, security, and energy savings. It features a wireless, battery-powered design with a 3V button cell battery size. The sensor displays temperature readings on a 3.5-inch screen and can be controlled through various smart home platforms such as Apple HomeKit, Google Home, and Amazon Alexa. With a heat stage of 2 and cool stage of 2, this Ecobee sensor is compatible with ecobee thermostats and offers a 3-year manufacturer warranty. Perfect for wall or surface mounting, this sleek white sensor is a valuable addition to any smart home setup.