Non-Programmable Digital Thermostat, Volts:24 VAC,3 Configurable Outputs, Control Up to 2 Heat And 2 Cool Stages, Backlit Display, Aux Heat Indicator, Dry Contact Equipped, Set Point Limiting, Outdoor Sensor Ready, Accepts EZ Programmer, IR Remote Control or Comfort Call Phone Control Accessories, Dims:4"H X 5-3/4"W X 1-1/16"D, Weight:10oz, In Mfg Box, Made In China.