This item is in stock, there is no lead time.


The MMR-640 meter is designed to measure very low resistance of resistive objects. This product is made to be used in
power plants, railways and maintenance companies to measure resistance of:

  • breakers, contacts,
  • earthing conductors, equipotential bondings,
  • welded and soldered connections,
  • bolted connections,
  • and other resistive objects.

MMR-640 can be also utilized on production lines (eg. at the final production control stage).

Product features

  • measurement of very low resistance
  • high immunity to disturbances
  • easy operation
  • big touchscreen
  • automatic measurement mode
  • autoranging


This item is in stock, there is no lead time.

Sonel MMR-640 Low Resistance Meter DLRO Accuracy ±(0.25% w.m + 2 digts) 10A

  • This item is in stock, there is no lead time.

    Comes with a two year warranty from the manufacturer.

  • Please see photos and description for full specifications.


For Sales, Calibration, or Repair Services Call 1 (888) 868 - 4546

Contact Us 

750 Oakdale Rd Unit 52

Toronto, Ontario

M3N 2Z4 Canada

Local: (905) 406-0100 

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