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Article No. 10888

Rhopoint Milli-Ohmeter M210 W/Clip Probe

The Milliohm-meter is a portable digital meter used to measure low resistances over the range 0.001O to 200O. A high degree of accuracy is achieved by utilizing a four terminal input to eliminate errors caused by test lead length.

$750.00 excl. taxes & shipping cost


  • 0.1% accuracy
  • Only 5mA test current
  • Single push button operation
  • Auto-ranging
  • Four terminal input
  • Auto switch-off after three minutes
  • 20 hours continuous operation (from standard PP3 battery)
  • Lightweight and portable
  • Powered by a single 9V (PP3, MN1604 or equivalent) battery (not included)
  • One of the most important features of the Milliohm-meter is its low (5mA) test current. This ensures that the contact being tested is not ‘cleaned’ by the test current which can happen when higher test currents are used. This ‘cleaning’ of the contact under test leads to erroneous measurements.
  • Applications: Relay, switch and connector contact, PC-plated through holes, PC track resistance, transformer and motor windings, ring circuit testing, earth conductor continuity, wire-wrapped and solder joints, RFI shielding and coil resistance, network cabling, aircraft bonding check

Technical Attributes

  • Data
    Ranges:1.999Ω, 19.99Ω, 199.9Ω
    Increments:0.001Ω, 0.01Ω, 0.1Ω
    Accuracy:±0.1% of range
    Zero Offset:±0.001Ω
    Maximum:V 1.4V
    Maximum:A 5mA
    Temperature Drift:0.1%/°C of lowest range
    Display:3.5" digit LCD
    Battery:9V (PP3 MN1604 or equivalent)
    Operating Temperature:41°F - 95°F (5°C to 35°C)
    Weight:510gms (including case and leads)
    Dimensions (in case):H 5.9", W 5.7", D 1.8"
    Dimensions (out of case):H 5.9", W 32", D 1.5"


Using Standard Clip Leads M210/9A (supplied as standard)

  1. Plug either black plug into either black socket in the top of the instrument and red plugs into red sockets.
  2. Clip leads to circuit or component to be tested. Ensure that both faces of clip make good electrical contact.
  3. Press the ON button to read resistance.

Using Probe & Contact Connectors M210/9B (optional extra)

  1. Insert plugs into their respective sockets as illustrated. The outer plugs form the current circuit via the clips. The inner plugs (with yellow bands) connect the probes in the
  2. voltage measuring circuit.
  3. Clip leads to circuit under test.
  4. Press ON button to read resistance when the probes are in contact with the circuit.

Interpreting the Display

  1. The Milliohm-meter will read directly in ohms or milli-ohms.
  2. Fluctuating readings displayed. Check that the clips are making good contact with the circuit under
  3. test, then look for the cause of intermittency, e.g. dry solder joint, oxidized or corroded terminals;
  4. slight mechanical movement of the component(s) in the circuit under test should quickly reveal the
  5. source of the problem.
  6. Flashing “1” indicates that resistance in circuit exceeds 200 ohms.
  7. “LO BAT” displayed indicates low battery.

Battery Replacement

Slide down the cover at the rear, bottom of the instrument. Fit new battery 9 volt PP3 (MN1604 or equivalent). Replace cover.

Delivery Content

One Set of standard spring clip connectors, Leather case with strap, Leads, Instructions, and Certification and 2 Year Warranty


M210/9A Replacement Set Std Spring Clip
M210/9B Probe And Contact Connectors
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