Venstar Explorer T3950-IAQ Residential Air Patrol VenNet Thermostat (4H/2C)

7-day programmable or non-programmable, Outdoor sensor ready Auto changeover, up to 2-stage heat, 4-stage cool for use with gas/electric or heat pump Built-in indoor air quality sensor that continuously monitors IAQ 365 Day holiday programming (when connected to Skyport) Works with Google Assistant and Amazon Alexa and gives FDD notifications