PROGRAMMABLE HEAT PUMP THERMOSTAT (661485)

Blue 2″ display, heat pump (2H1C) 5+1+1 programmable digital thermostat
Backlit display
24 volts or millivolt
System switch HeatOffCoolEmAutoOn, energy management recovery
Profile Horizontal
Hardwired or battery powered
Range 45-90°F
Terminals R, C, G, Y, W2, OB, L