White-Rodgers™ Universal Thermostat, Conventional, Digital, Programmable/Non-Programmable Thermostat, 45 to 99 deg F Control, RC, RH, C, W, Y, O/B, G Terminal Designations, Heat/Cool/Off System Switching, Auto Fan Switching, 2 Stage, 1 Stages Heat, 1 Stages Cool, 7 or 5-1-1 Days Programs per Week, 4-1/2 sq-in Lighted Display, 20 to 30 VAC, Battery/Hardwired Power Source, White, 6 in W x 1-1/8 in D x 3-3/4 in H, Import