DV-Power – RMO-H21 100A Handheld Micro Ohmmeter (5m longer cables)

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Data Sheet RMO-H


RMO-H micro ohmmeters are ideal for a number of applications for contact resistance measurements of non-inductive test objects. Typical applications are testing of circuit breakers and disconnecting switches, high-current bus bar joints, cable splices, welding joints, etc.

Regulated, user selectable test current

    RMO-H21 generates up to 100 A DC (ripple-free) test current, user selectable and generated in an automatic regulated test ramp. This revolution in handheld micro ohmmeters technology is enabled by use of Li-Po batteries

Advanced measurement capabilities

  •  Measuring range: 0.1 μΩ – 3000 mΩ
  •  Resolution: 0.1 μΩ
  •  Typical accuracy: ± (0.1 % rdg + 0.1 % FS)

Ideal for field & factory testing

  •  Handheld, only 0.95 kg weight
  •  IP54 mechanical protection rating
  •  Designed to make multiple measurements and full day’s work of testing without a battery recharge
  • Bluetooth communicationj
  • Both Sides Grounded (BSG) Measurement

Included in the standard price are the advanced DV-Win application software system, Bluetooth communication, protective transport case, ground cable and battery charger. As additional advantage, the RMO-H battery can be charged by the regular car charger which is part of optional accessories.

Included accessories

  • USB with DV-Win PC software
  • Ground (PE) cable
  • Plastic transport case
  • Carrying belts

Recommended accessories

RMO-H21 model:

  • Current and sense cables 5 m with TTA clamps