Extech 380580 Battery Powered Milliohm Meter

  • Designed for field low-resistance testing
  • Four-terminal Kelvin measurement accuracy
  • Five resistance ranges with 0.1 mΩ resolution
  • Battery-powered meter in water-resistant case

From £613.41 (ex VAT)

£736.09 (inc VAT)

Earn 613 – 643 points

Usually ships In 1 to 2 weeks

Why buy from Test4Less?

  • Designed for field low-resistance testing
  • Four-terminal Kelvin measurement accuracy
  • Five resistance ranges with 0.1 mΩ resolution
  • Battery-powered meter in water-resistant case
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From £613.41 (ex VAT)

£736.09 (inc VAT)

Earn 613 – 643 points

Usually ships In 1 to 2 weeks

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The Extech 380580 Battery Powered Milliohm Meter delivers precise, stable low-resistance readings for work on site. It runs on 8 AA batteries and keeps teams mobile in the field.

Measurement clarity with Kelvin method

Four-wire Kelvin measurement reduces lead resistance and contact effects. High-resolution readings reveal small changes in low-ohm values and support repeatable checks.

Protection and compliance for field work

Built-in protection guards the Extech 380580 Battery Powered Milliohm Meter during demanding tasks. Over-temperature and over-voltage features add confidence when testing in varied environments. CE certification supports use in regulated workplaces.

Two lead sets are supplied for general clips and Kelvin clips. 8 AA batteries are included so the meter works out of the box. The portable design suits maintenance rounds, service visits, and quality checks.

Key features
  • Four-terminal Kelvin measurement supports low resistance testing.
  • Battery operated design enables reliable field use.
  • High accuracy readings support trusted milliohm checks.
  • High resolution output shows small resistance changes.
  • Over-temperature protection adds confidence during tasks.
  • Over-voltage protection helps safeguard the instrument.
  • CE certified construction suits regulated workplaces.
  • Two 4-wire lead sets expand test flexibility.
  • Alligator clip options aid stable contact on conductors.
  • Kelvin clip options improve low-ohm connection quality.
  • Supplied batteries allow immediate commissioning on site.
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Extech 380580 Battery Powered Milliohm Meter

Extech 380580 Battery Powered Milliohm Meter is a portable instrument designed for low-resistance measurement in field use. It provides five resistance ranges and resolution down to 0.1 mΩ. Four-terminal Kelvin measurements help provide accurate resistance readings by using separate current and potential connections.

A large 2000-count LCD gives a clear digital reading, while Auto-Hold can retain a measurement for convenient viewing. The meter also includes Auto Power Off and LED indicators for over-temperature, voltage regulation and current regulation conditions. Over-temperature and over-voltage protection add further protection during testing.

Built into a water-resistant case with a shoulder strap, the Extech 380580 Battery Powered Milliohm Meter is suited to portable maintenance work. It operates from eight AA batteries and includes two sets of test leads for standard four-wire alligator clip and Kelvin clip connections. Typical resistance measurement applications include transformers, motor coils and PC boards.

 

Key Benefits
  • Four-terminal Kelvin measurement separates current and potential connections for accurate low-resistance testing.
  • Five selectable resistance ranges cover measurements from milliohm values through to 2000 Ω.
  • Resolution down to 0.1 mΩ supports detailed measurement of very low resistance values.
  • The large 2000-count LCD makes digital readings easy to view during testing.
  • Auto-Hold retains readings so they can be viewed after a test.
  • Auto Power Off helps reduce unnecessary battery use when the meter is left switched on.
  • LED error indicators show over-temperature, voltage regulation and current regulation conditions.
  • Over-temperature and over-voltage protection help protect the instrument during use.
  • The water-resistant case and shoulder strap support portable field testing.
  • Battery operation allows resistance measurements without a mains power supply.

 

Common Applications

Extech 380580 Battery Powered Milliohm Meter is suitable for a range of testing, maintenance and inspection tasks, including:

  • Transformer resistance measurements
  • Motor coil resistance measurements
  • PC board resistance measurements
  • Portable low-resistance field testing
  • Four-terminal Kelvin resistance measurements
  • Low-resistance checks requiring resolution down to 0.1 mΩ

 

Why Choose This Model?

The Extech 380580 combines five resistance ranges, four-terminal Kelvin measurement, 0.1 mΩ minimum resolution and battery-powered portability. The 380580-NIST version uses the same 380580 meter configuration with calibration traceable to NIST.

General Specifications
Specification Details
Product type Battery Powered Milliohm Meter
Measurement method Four-terminal Kelvin measurement
Display Large 2000-count LCD
Hold function Auto-Hold
Power management Auto Power Off
Protection Over-temperature and over-voltage protection
Current terminals Fuse protected
Status indicators No Test/Over Temperature, Rv Voltage Regulation and Rc Current Regulation LED indicators
Power supply 8 AA batteries
Certification CE certified

 

Measurement and Accuracy Specifications
Specification Details
Resistance range 1 200.0 mΩ; 0.1 mΩ resolution; 100 mA test current; ±(0.5% rdg + 2 digits)
Resistance range 2 2000 mΩ; 1 mΩ resolution; 100 mA test current; ±(0.5% rdg + 2 digits)
Resistance range 3 20.00 Ω; 0.01 Ω resolution; 10 mA test current; ±(0.5% rdg + 2 digits)
Resistance range 4 200.0 Ω; 0.1 Ω resolution; 10 mA test current; ±(0.5% rdg + 2 digits)
Resistance range 5 2000 Ω; 1 Ω resolution; 1 mA test current; ±(0.5% rdg + 2 digits)
Number of resistance ranges 5
Lowest resolution 0.1 mΩ

 

Mechanical and General Information
Specification Details
Dimensions 9.8 × 7.5 × 4.3 in (250 × 190 × 110 mm)
Weight 3.3 lb (1.5 kg)
Battery type 8 AA batteries
Case Built-in water-resistant case with shoulder strap
Controls Start/Stop Test button and Range Select/Power switch
Measurement connections Current terminals and potential measurement terminals
Current lead identification C1 green and C2 blue
Potential lead identification P1 red and P2 black

 

Specification Notes
  • All five resistance ranges have a basic accuracy of ±(0.5% of reading + 2 digits).
  • Test current is 100 mA on the 200.0 mΩ and 2000 mΩ ranges, 10 mA on the 20.00 Ω and 200.0 Ω ranges, and 1 mA on the 2000 Ω range.
  • When four separate alligator clip leads are used, the current leads are positioned outside the potential leads.
What’s Included
  • Extech 380580 Battery Powered Milliohm Meter
  • 8 AA batteries
  • Four-wire test lead set with four alligator clips
  • Four-wire test lead set with two Kelvin alligator clips
  • Built-in water-resistant case with shoulder strap

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