The York S1-THXU430W 4H/2C WiFi Humidity Programmable Thermostat is an advanced climate control device designed to manage heating, cooling, and indoor humidity with precision. It works by monitoring temperature and humidity levels, then automatically adjusting HVAC system operation based on user settings and schedules. Compatible with multi-stage heat pumps, furnaces, central air cond... https://www.partshnc.com/4h2c-wifi-hum-progr-tstat