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Extech 412355A
Current & Voltage Calibrators/Meters

  • Can be applied to the setup and calibration of process devices such as transducers, indicators, recorders and controllers
  • Applicable for use with troubleshooting, product design, and field service
  • Upgraded models now feature super large LCD display and touch keypad
  • LCD displays readings in mA or as a percent(%) of the 0 to 24mA range or as mV in voltage ranges
  • Five stored calibration values for fast calibrations
  • Current and Voltage Calibrator provides adjustable 0 to 24mA and 0 to 20V calibration source
  • Complete with 9V battery, calibration cable with spade lug terminals, carrying case, and 100V-240V AC Universal Adaptor (50/60Hz)
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Extech 412355A Shown
Product Information
Datasheet 293 KB
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Measurements Range
Operating Modes
Source Output 0 to 24mA current for loads up to 1000 ohms
Output 0 to 20V
Measure 0 to 50mA current signal
0 to 19.99V
Input/Output Ranges and Display Resolution
  -25.0 to 125.0%
(representing 0 to 24mA)
  0 to 19.99mA 0.01mA
  0 to 24.0mA 0.1mA
  0 to 1999mV 1mV
  0 to 20.00V 10mV
Accuracy 0.075% ±1 digit
Power 9V battery or AC adaptor
Dimensions/Weight 3.8 x 4.2 x 1.8" (96 x 108 x 45mm) folded/ 12oz (340g)
Ordering Information
Model Description Buy Online Price
412355AExtech 412355A Current & Voltage Calibrators/Meters Buy Now$269.99
412355A-NISTExtech 412355A-NIST Current & Voltage Calibrators/Meters with NIST Calibration Buy Now$344.99
Included Accessories
  • (1) Calibration cable with spade lug terminals
  • (1) 9V battery

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