Pro1® Programmable Thermostat, 0.2 to 2 Deg F Differential, 1 Stages Heat, 1 Stages Cool, Temperature Settings Per Day: 4, Terminal Designations: RH, RC, C, Y, W, G, B, O, 4 sq-in LCD Display, 24 VAC, Battery/Hardwire, Wall/Junction Box Mount, Green, 4.4 in H x 4.7 in W x 1.1 in D, Import