White-Rodgers™ Thermostat, Series: Classic 80, Digital, Non-Programmable Thermostat, 45 to 90 deg F Control, RC, RH, C, W, Y, O/B Terminal Designations, Heat/Cool/Off System Switching, Auto/On Fan Switching, 2 Stage, 1 Stages Heat, 1 Stages Cool, 90% Non-Condensing Humidity, 2.2 in Back-Lit Display, 1 to 30 mV, Battery Power Source, Horizontal Mounting, White, 6 in W x 1-3/16 in D x 3-7/8 in H, Import