White-Rodgers Sensi Thermostat, Touch smart, 45 to 99 deg F Control, RC,RH,C,W/E,W2,Y,Y2,O/B/2,G,L Terminal Designations, Heat/Off/Cool/Auto System Switching, Auto/On Fan Switching, 1 Stage, 1 Stages Heat, 1 Stages Cool, 0 to 90 % Non-Condensing Maximum Humidity, 24 VAC,