Extech PRC20 Thermocouple Calibrator

Extech PRC20 Thermocouple Calibrator


The Extech PRC20 Thermocouple Calibrator can source and measure 8 thermocouple type devices.


  • Large battery bank for extended work cycle
  • Up to five user adjustable calibration presets
  • Displays output in terms of millivolts or temperature
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Source and measure 8 thermocouple type devices (J, K, T, E, C, R, S, and N) with the PRC20 that provides precision output displayed as °C/°F or mV. The high accuracy calibration function simulates precision thermocouple outputs for use in calibrating thermometers, transmitters, controllers, and recorders. The output is displayed in terms of millivolts or temperature based on thermocouple tables.


The large battery bank and external power adapter make for a continuous work cycle. Applications include lab and field calibration and verification operations of sensors, thermocouple probes, controllers, panel meters, and testing tools, engineering research and design, manufacturing and test engineering, HVAC, and temperature control process troubleshooting.

Notable Specifications:
  • Type J range: -58 to 1832°F (-50 to 1000°C)
  • Type J basic accuracy: 0.05% rdg ±1°
  • Type K range: -58 to 2498°F (-50 to 1370°C)
  • Type K basic accuracy: 0.05% rdg ±1°
  • Tye T range: -184 to 752°F (-120 to 400°C)
  • Type T basic accuracy: 0.05% rdg ±1°
  • Type E range: -58 to 1382°F (-50 to 750°C)
  • Type E basic accuracy: 0.05% rdg ±1°
  • Type C range: 32 to 3182°F (0 to 1750°C
  • Type C basic accuracy: 0.05% rdg ±1°
  • Type R/S range: 32 to 3182°F (0 to 1750°C)
  • Type R/S basic accuracy: 0.05% rdg ±1°
  • Type N range: -58 to 2372°F (-50 to 1300°C)
  • Type N basic accuracy: 0.05% rdg ±1°
  • Voltage range: -10.00mV to +60.00mV 10μV
  • Voltage basic accuracy: 10μV ±1d
  • Resolution: 0.1° (up to 999.9) or 1° (over 999.9°) for J, K, T, E ; 1° for R, N; 0.5° for C, S
  • Input impedance: 10 MΩ
  • Sampling time: 4 times/second
  • Meter dimensions: 6.3" x 3.2" x 1.7" (159 x 80 x 44mm)
  • Meter weight: 8oz (225g) - not including battery weight
What's Included:
  • (1) Meter
  • (1) Calibration cable with subminiature connectors
  • (1) Standard calibration cable with subminiature connectors
  • (1) 100V-240V AC universal adaptor with 4 plugs
  • (6) 1.5V AA batteries
  • (1) Hard carrying case
Image Part # Product Description Price Stock Order
Extech PRC20 Thermocouple Calibrator PRC20 Thermocouple calibrator
Usually ships in 1-2 weeks
Extech PRC20 Thermocouple Calibrator PRC20-NIST Thermocouple calibrator, NIST traceable
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