Extech Microprocessor Calibrator Thermometer

Extech Microprocessor Calibrator Thermometer


The Extech Microprocessor Calibrator Thermometer includes multipler thermocouple types with precision output displayed as mV or °C/°F.


  • Basic accuracy of 0.15% of reading over wide ranges
  • Five stored calibration values for fast calibrations
  • °C/°F switchable for increased versatility
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The Extech Microprocessor Calibrator Thermometer features a high accuracy function that simulates precision thermocouple outputs for use in calibrating thermometers, transmitters, controllers, or recorders. The thermometer has a 0.1°/1° resolution for J, K, T and E Types; 1° for for C, R, S and N Types. The display shows readings in terms of millivolts or temperature based on thermocouple tables. The unique handheld Oyster case design features a large 4 digit digital display with a built into "flip-up" cover that will automatically shut off the instrument when closed. The portable and rugged design is for field, plant, or benchtop use. 


The standard thermometer calibration cables (terminated with subminiature connectors on either side) come standard with the meter. The optional process calibration cable is terminated with spade lug for process applications. The unit has 5 stored calibration values for fast and accurate calibrations.

Notable Specifications:
  • Type J temperature range: -58 to 1830°F (-50 to 1000°C)
  • Type J temperature basic accuracy: 0.15% rdg ±1°
  • Type K temprerature range: -58 to 2498°F -50 to 1370°C)
  • Type K temperature basic accuracy: 0.15% rdg ±1°
  • Type T temperature range: 184 to 752°F (-270 to 400°C)
  • Type T temperature basic accuracy: 0.15% rdg ±1°
  • Type E temperature range: -58 to 1382°F (-50 to 750°C)
  • Type E temperature basic accuracy: 0.15% rdg ±1°
  • Type C temperature range: 32 to 4172°F (0 to 2300°C)
  • Type C temperature basic accuracy: 0.15% rdg ±1°
  • Type R temperature range: 32 to 3182°F (0 to 1750°C)
  • Type R temperature basic accuracy: 0.15% rdg ±1°
  • Type S temperature range: 32 to 3182°F (0 to 1750°C)
  • Type S temperature basic accuracy: 0.15% rdg ±1°
  • Type N temperature range: -58 to 2372°F (-50 to 1300°C)
  • Type N temperature basic accuracy: 0.15% rdg ±1°
  • Voltage range: -5.00mV to +55.00mV 10μV
  • Voltage basic accuracy: 10μV ±1d
  • Resolution: 0.1° (up to 999.9) or 1° (over 999.9°)
  • Cold junction compensation: 0.03°C/°C (0.02°F/°F)
  • Input impedance: 10 Mohm
  • Sampling time: 4 times/second
  • Dimensions: 3.8 x 4.2 x 1.8" (96 x 108 x 45mm)
  • Weight:  17oz
What's Included:
  • (1) Calibrator
  • (1) Type K thermocouple calibration cable
  • (1) Copper calibration cable
  • (1) 9V NiCad rechargeable battery
  • (1) Neck strap
  • (1) AC adapter/ recharger
  • (1) Case
Image Part # Product Description Price Stock Order
Extech Microprocessor Calibrator Thermometer 433201 Extech microprocessor calibrator thermometer
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Extech Microprocessor Calibrator Thermometer 433201-NIST Microprocessor calibrator thermometer, NIST traceable
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