Leviton RC-2000WH Omnistat2 Multistage & Heat Pump with Humidity Control Thermostat, White Only products shipped and sold by Amazon.com (not third-party sellers) are eligible for full warranty and technical support offered by Leviton Single stage including gas, oil, steam, hydronic, forced air, radiant, and electric Also controls 2 stage conventional, heat pumps including air-to-air heat pumps or geothermal Can control two speed heat pumps with third stage auxiliary heat Humidity sensing and display with humidifier and dehumidifier control