A Comparison of Temperature Recorders – Digital vs. Mechanical

DIGITAL

  • Information is stored internally, electronically (non-volatile).
  • A temperature reading is taken every 15 minutes with an actual date/time stamp recorded at those intervals.
  • Accuracy is +/- 1°F.
  • Temperature information can be viewed using the LCD display on each recorder. Detailed information can be downloaded to your computer using our free dedicated software. No “reader” needed. Connection made via “serial” DB9 connector or DB to USB.
  • Numerical values can also be printed as well as detailed graphs.
  • As the temperature is read every 15 minutes the graph will appear very precise, in a connect the dots fashion.
  • All information can easily be stored as a file in your computer as well as using e-mail for exchange of information.
  • Post trip calibration available upon request.

MECHANICAL

  • Information is plotted on a thermal pressure sensitive chart incorporated onto the recorder design.
  • The chart will roll from a feed spool similar to a film camera. Temperature sensing is constant as the bi-metallic coil responds to temperature.
  • Accuracy is +/- 2°F.
  • A bi-metallic coil takes some minutes to respond to temperature changes, therefore the graph will represent rolling hills vs. potential spikes and dips that may be visible on a chart printed from a digital recorder. Time is interpreted at hourly intervals and calculated based on the start time and date entered by the individual initiating the recorders use.
  • Charts can be copied for exchange of information.
  • Post trip calibration available upon request.