Aprilaire 8620W Touchscreen Wi-Fi Thermostat; Works with Alexa Works with Alexa for voice control (Alexa device sold separately). Aprilaire Programmable Wi-Fi thermostat Remote monitor and control capabilities with the Aprilaire Wi-Fi Thermostat App on IOS and Android Large 10.3 square-inch LCD touch-screen display Event-Based Air Cleaning and Humidity or Ventilation Control