ecobee3 Lite Smart Thermostat

Product Dimensions: 1"D x 4.05"W x 4.05"H Works with: Vera, Google Assistant, Amazon Alexa, iOS, Android Special Feature: Window Sensor, Door Sensor Control from anywhere using your Android or iOS device ecobee was named an ENERGY STAR Partner of the Year award winner. Integrates seamlessly with your preferred smart home system. Connectivity - Wi-Fi, 802.11 b/g/n @ 2.4 GHz. Compatible with most 24VAC HVAC systems: furnaces, ACs (2H/2C), heat pumps (2H/2C + 2 stage AUX), boilers, PTACs, and fan coil units (3 fan speeds).