Extech Micro-Ohm Meter High Resolution - UM200

In stock

This meter features an extremely high resolution up to 1 micro-ohm. Great for highly precise circuit board design and component testing. A must have for high precision devices.

Extech Micro-Ohm Meter High Resolution - UM200

Provides resolution down to 1μΩ using 4-wire Kelvin clip test leads


  • 6 ranges with 3 sub-ranges in each current range for a total of 18 sub-ranges
  • Measurement of resistive and inductive materials
  • Auto or Manual ranging
  • High resolution to 1μΩ
  • 5-Digit backlit LCD screen for quick, precise reference
  • Built-in comparator for Hi/Lo/Go resistance testing with 20 sets of pre-stored values
  • Store/Recall up to 3000 measurements
  • 10A maximum test current
  • Cable length measurement (feet or meters)
  • With an RS-232 PC interface for downloading and analyzing data to a PC
  • 1 year warranty
  • Comes complete with 4 wire cables with Kelvin Clip Connectors
  • Features a rechargeable Li-Polymer battery
  • Also includes an AC adapter/charger, software and USB cable and a carrying case

When dealing with highly precise resistances and low tolerances for flaws, inaccurate readings are unacceptable. High resolution and repeatable readings are the key to any reliable resistance meter. Circuit board design and calibration is dependant on highly accurate resistance readings.

The Micro-Ohm Meter with High Resolution fits these requirements perfectly, being able to test resistive and inductive materials. With a high resolution down to 1μΩ this is perfectly suited for checking the tolerances of factory made resistors and the design and usefulness of circuitry.

This dedicated device has the ability to store and recall up to 3000 measurements as well as download the data to a PC for further analysis. Included is everything needed to start testing immediately including RS-232 software for easy downloading and manipulation of data. The UM200 Micro-Ohm Meter User Manual is attached to this page to answer any further questions.


  • Resistance:
    • Ranges: 60mΩ, 600mΩ, 6Ω, 60Ω, 600Ω, 6Ω
    • Resolutions: 1μΩ, 10μΩ, 100μΩ, 1mΩ, 10mΩ, 100mΩ
    • Currents: 10A, 1A, 100mA, 10mA, 1mA, 100μA
    • Accuracy: ±0.25% to ±0.75% (in larger ranges)
  • Power: Rechargeable Li-Polymer Battery
  • Dimensions: 10.1 x 6.1 x 2.2” (257 x 155 x 57mm)
  • Weight: 2.6lbs (1160g)

Unit Ship Weight: 3 lbs

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