The Emerson 1F87U-42WF Sensi™ Wi-Fi Smart Programmable Thermostat is a versatile device that can work with both corded electric and battery power sources. It is a wireless thermostat with a 5-inch digital display that is compatible with universal, heat pump, and packaged/rooftop air conditioners. This programmable thermostat can be controlled using push buttons, app control, and touch with smart home compatibility with Apple HomeKit, Amazon Alexa, and Google.The Emerson 1F87U-42WF Sensi™ Wi-Fi Smart Programmable Thermostat has a digital user interface and features several aspects such as a thermostat, temperature sensor technology, and a California Prop 65 Warning. It has a programmable option for seven days and is wall-mounted with low voltage voltage type. The device comes in a rectangular shape, with a white color, and made of aluminum and plastic materials. It is a perfect fit for your home improvement needs.