Manufacturer: Emerson Specifications: * Will control gas, oil or electric furnace * Will operate heat pumps * Will operate heat only or cool only systems * Will operate hydronic (hot water) heat, 2 wire or 3 wire * Programming choices: 5/2 day or 5/1/1 day or non-programmable * Battery backup to retain programming * Celsius or Fahrenheit display * Four (4) system settings: Heat, Off, Cool, Auto. In Auto, changeover is used in areas where both heating and cooling may be required on the same day * Complete set of User Instructions and programming Guide, two AA batteries Condition: Excellent Reason for selling: removed when Vendor's air conditioning system was replaced Sold as is, where is $25