Emerson 1F89 211 Heat Pump Non Programmable Thermostat

' Low Voltage Thermostat, Stages Heat 2, Stages Cool 1, Terminal Designations R, C, Y, W2, G, O/B, E, L, System Switching Heat-Cool-Off-Emergency, Fan Switching Auto-On, Display Digital Backlit, Programmable Fan No, Humidification Control No, Filter Indicator Yes, Dual Transformer Compatible No, Power Method Hardwired, 750mV Compatible No, Height 3-3/4 In., Width 6 In., Depth 1-1/4 In., Mounting Type Horizontal, Color White, Control Range 45 Degrees to 90 Degrees F '