This instrument provides the accuracy and resolution needed to meet the measurement needs of a precision laboratory or critical process control and testing functions. Free software is included enabling users to start recording, charting, and storing data in a familiar file format on their PC within minutes of opening the box. A well-defined command set and output data format allows users to easily connect computer systems to the thermometer to create custom displays and report formats. There are a wide range of custom designed application specific thermistor probes that can be selected for use with this instrument. The selected probe would be hardwired to the instrument and calibrated together to meet specific high accuracy requirements.