Features: Save Energy: With customizable routines that conserve energy when you?re away and daily energy reports, you can create a greener home and reduce your energy costs. .Operating Conditions- Temperature: 32?122F / 0?50C, Relative Humidity : 5?95% (non-condensing). Room-to-Room Comfort: Connect up to 16 Levoit sensors (sold separately) to the smart thermostat, helping you to monitor each room and pick the most comfortable temperature for you. 24/7 Scheduling: Customize routines that will automatically adjust the temperature for you without the need for manual changes. Control From Anywhere: Let Amazon Alexa or Google Assistant adjust the temperature at your command when you connect your thermostat to the free VeSync app. Eco Level Setting: Select an Eco level to set your thermostat's energy usage and temperature precision. A higher Eco level focuses on energy efficiency, but will not control temperature as precisely. Smart Scenes: Take control of your home's atmosphere by connecting Levoit sensors, smart humidifiers, and smart air purifiers to the thermostat with the VeSync app. User-Friendly Touchscreen: The 4-inch, high-resolution display automatically adjusts its brightness based on the amount of light in the room, allowing you to easily view your indoor temperature, humidity, and the weather forecast. Easy HVAC Monitoring: Receive notifications when there?s a system malfunction or when your indoor temperature goes outside your preferred range. High Compatibility: This thermostat comes with a C-wire adapter and is compatible with Heating and Cooling Systems, Cooling Only System, Heat Pump Systems, and more. Does NOT work with heating only systems(No C-wire) or high voltage systems(120V-240V). Easy to Install: The average DIY installation takes about 35 minutes. Simply follow the step-by-step installation guide in the VeSync app.