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Extech 422123
Precision Multifunction Calibrator,

  • Source 4 to 20mA, 0 to 20mA or 0 to 24mA with 0.001mA resolution
  • Select Type K, J, T or E thermocouple for precision calibrations in °F or °C
  • Output 0 to 100.00mV, 0 to 1.0000V or 0 to 10.000V
  • Frequency source of 1Hz to 62.5kHz in over 700 steps
  • Self-contained 24V loop power supply drives current loads up to 1000Ω
  • User can easily set output steps from 1% to 100%
  • Basic 4 to 20mA process loop accuracy of 0.025%
  • Large 5 digit LCD display
  • Step and auto-ramp features
  • Simple keypad operation
  • Audible warning if load is open with mA output or shorted with V output
  • Powered by internal 9V battery or external battery pack (attaches to meter stand) for extended field applications or optional AC adaptor
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Extech 422123 Shown
Product Information
Datasheet 257 KB
Manual 111 KB
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Ordering Information
Model Description Buy Online Price
422123 Extech 422123 Precision Multifunction Calibrator Discontinued


*NOTE: Items ordered with optional NIST calibration will require
approximately 10 days to complete the certification.