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2203 Differential Thermometer

  • Reads 2 probes or Probe 1 minus Probe 2.
  • Great for servicing refrigeration.
  • Interchangeable type K thermocouples.


This differential thermometer reads two probes. Front panel buttons allow you to switch the display between the temperature of probe “T1” or “T2”. In differential mode the display shows the difference between “T1” and “T2”, making it possible to read the temperature drop or rise across radiators, refrigeration or other equipment. The Hold button captures readings on the display. The large LCD clearly indicates the thermometer mode including: T1, T2, Diff, Hold, Open Circuit and Low Battery indications. Order °C or °F according to your requirement. Options include a rubber boot and two sizes of attaché cases.

Specifications:  
Range: -58 to 1022°F (-50 to 550°C)
Resolution: 1°F or °C
Accuracy: ±2°F (±1°C), ±1%
Probe: not included, type K thermocouple, mini-connector
Battery: 9V, 150 hours
Dimensions: 2.87” x 5.55” x 1.38”


To Order:

221-234 2203 Differential Thermometer, °F
221-233 2203 Differential Thermometer, °C
830-205 Rubber Boot
834-100 small foam lined carry case, fits 1-2 probes

Go here to order PROBES