Honeywell 7-Day Wi-Fi Programmable Digital Thermostat Wi-Fi enabled thermostat allows for remote access via Smartphone or computer. 7 day programming with 4 program periods per day. Free app Smart Response Technology gives control of thermostat settings. View local weather from app. High/low temperature alerts via email, phone, or web. Precise temperature accuracy /- 1 F degree Fahrenheit . Pre-programmed with energy savings schedule. Vacation hold adjusts programming and automatically resumes normal settings. Filter change reminder based on actual run time. Universal compatibility works with virtually any system type 24V common wire required . Works with 2 Stage or multi-stage heat or cool. 24V. 3.75 H x 5.75 W x 1.25 D. Programmable 7-Day Programmable, Color White, Pkg Qty 1, Package Type Box