Venstar T5900 Colortouch Series Programmable Touchscreen Digital Thermostat With Humidity Control New features include humidification, dehumidification and reheat Wi-Fi ready with mobile app for Android and iOS smart devices with connected Skyport key Controls gas/electric or heat pump equipment, with up to 4 heating and 2 cooling stages Use your own digital images to customize the background, Scheduler keeps home temperature comfortable Security features for locking thermostat, Automatic daylight savings adjustments, multiple languages, and alerts