Skip Content

Process Calibrator Multimeter close
close x

Using 360° Viewing:

  1. Rotate: Use top-to-bottom, side-to-side by use of mouse arrow.
  2. Zoom In: Double click on image.
  3. Zoom Out/Reset: Put photo at full zoom & then double click.
Megaphone How can we improve our Product Images?

Process Calibrator Multimeter

Price $1,124.00 / each

Activate Now

to save with

Select AdvantageSM

Please sign in or register to access lists

Confirm ZIP Code to determine availability.


Invalid Zip Code


Ship to: (Change)


Invalid Zip Code

  • Item # 3MU89
  • Mfr. Model # FLUKE-789
  • UNSPSC # 41113630
  • Catalog Page # 766
  • Shipping Weight 2.95 lbs.
Country of Origin USA Country of Origin is subject to change.
Note: Product availability is real-time updated and adjusted continuously. The product will be reserved for you when you complete your order. More

Technical Specs

  • Item Process Calibrator Multimeter
  • Source Current 0 to 20mA DC
  • Current Measurement Range 0 to 30 mA DC
  • Voltage Measurement Range 0 to 1000VAC/DC
  • Loop Supply Voltage 24VDC
  • Accuracy +/-0.5% + 2 Digits
  • Voltage (AC) 400mV/4/40/400/1000
  • Voltage (DC) 400mV/4/40/400/1000
  • Basic DC Accuracy +/-0.01% + 1 Count
  • Amps AC 1
  • Amps DC 30mA/1A
  • Resistance (Ohms) 400/4K/40K/400K/4M/40M
  • True RMS Yes
  • Frequency Range (Hz) .01 Hz to19.999 K
  • Display Multiline LCD
  • Safety Rating Cat IV 600V, Cat III 1000V
  • Includes Test Leads, Alligator Clips, (4) AA Batteries and Instructions
  • Manufacturers Warranty Length 3 Years
Megaphone How can we improve our Technical Specifications?

Compliance and Restrictions



The Fluke 789 ProcessMeter for electricians and instrumentation professionals combines the functionality of a loop calibrator with the power of a digital multimeter. Do more and carry less with a built-in, selectable 250 ohm HART® resistor and equip the 789 with a temperature measurement module. Pair with the ir3000 FC wireless connector (sold separately) to make it a part of the Fluke Connect® suite of wireless tools. When using the hardware and software together, you can capture and share reliable data you can trace and trust.

Alternate Products

Product Reviews Disclaimer:
Grainger is neither responsible for, nor does it endorse, the content of any product review or statement posted. Any statements posted constitute the statements of the poster and are not the statements of Grainger. The statements posted by Grainger employees with the Grainger employee badge represent the views of such employees and are not the statements of Grainger. Grainger makes no representations as to the appropriateness, accuracy, completeness, correctness, currentness, suitability, or validity of any product review or statements posted, including those posted by employees with the Grainger employee badge, and is not liable for any losses, injuries or damages which may result from any such product review or statements. Use of any linked web site provided in a product review or post is at the user's own risk.