Low Resistance Ohmmeters (69 Products)

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  1. Extech 380460 Precision Milliohm Meter 110VAC All Extech Products
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    Extech 380460 Precision Milliohm Meter (110VAC)
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    • Indication of overrange
    • 0.04 seconds sampling time
    • Wire accessories included
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    SKU: 380460
  2. Extech 380462 Precision Milliohm Meter - Kit All Extech Products
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    Extech 380462 Precision Milliohm Meter (220VAC)
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    • High resolution of 100μΩ
    • Five measuring ranges
    • 4-wire cables with Kelvin clip connectors
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    SKU: 380462
  3. Extech 380560 High Resolution Precision Milliohm Meter All Extech Products
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    Extech 380560 High Resolution Precision Milliohm Meter (110VAC)
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    • HI/LO/GO testing possible
    • Kelvin clip connection
    • Range of applications it can be used for
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    SKU: 380560
  4. Extech 380562 High Resolution Precision Milliohm Meter All Extech Products
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    Extech 380562 High Resolution Precision Milliohm Meter (220VAC)
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    • Lowest resolution is just 0.01mOhm
    • Built in bench top meter
    • 4-wire test cable with Kelvin clip connectors included
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    SKU: 380562
  5. Extech 380580 Battery Powered Milliohm Meter All Extech Products
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    Extech 380580 Battery Powered Milliohm Meter
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    • Water-resistant case
    • Four terminal Kelvin measurements
    • Sizeable, backlit LCD screen
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    SKU: 380580
  6. Metrohm E1622 Milliohmeter Meter All Martindale Products
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    Martindale Metrohm E1622 Milliohm Meter
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    • Takes low resistance measurements
    • Two different measuring areas
    • Negative effects of temperature can be countered
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    SKU: METE1622
  7. UNI-T UT620A Digital Micro-Ohm Meter All UNIT Products
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    UNI-T UT620A Digital Low Resistance Microhmmeter
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    • Selectable ranges of 120mΩ, 600mΩ, 6Ω, 60Ω, 600Ω and 6kΩ
    • Minimum resolution of 10μΩ
    • 60000 count backlit oversize LCD display
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    SKU: UT620A
  8. Seaward Cropico DO4000 Handheld Digital Microhmmeter All Seaward Products
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    Seaward Cropico DO4000 Handheld Digital Microhmmeter
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    • Portable, handheld solution for measuring low resistance levels
    • Measurement range from 40mΩ to 4kΩ
    • 100mA measurement current
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    SKU: DO4000
  9. Applent AT518/AT518L Handheld DC Resistance Meter All Applent Products
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    Applent AT518/AT518L Handheld DC Resistance Meter (Choice of Model)
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    • Choice of two versions
    • Wide measurement range
    • Handheld, portable design
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    SKU: AT518/AT518L
  10. Applent AT528/L Handheld Battery Meter All Applent Products
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    Applent AT528/L Handheld Battery Meter - Choice of Model
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    • Two different versions available
    • For use with a wide variety of batteries
    • Handheld design for use in the field
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    SKU: AT528/L
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About Low Resistance Ohmmeters

Ohmmeters are portable devices that are used by electricians to accurately measure the resistance opposing electrical current on circuitry.

Generally the ohmmeter family is divided into two distinct types. Micro-ohmmeters (also known as microhmmeter) are capable of making low resistance measurements, but can’t be used to measure larger values of resistance like you may find on high voltage equipment. The other form, the megohmmeter, can measure incredibly large levels of resistance and is a great solution for those working with higher levels of resistances.

While traditionally the ohmmeter displayed resistance as movement on a galvanometer scale, this has now been generally phased out in favour of digital technology. Rather than getting fluctuating readings from a needle scale a digital ohmmeter will accurately output the resistance of a circuit as a definitive number, allowing you to quickly tell exactly what the reading is. The inclusion of digital interfaces also means you can use a wide variety of different extra features (depending on which model you’re using) including built in-memory of test results, on board keyboard entries and more!

In order to obtain truly high-precision readings of resistance, the ohmmeter must have four terminals named Kelvin contacts. This forces the ohmmeter to ignore readings that interfere with the overall accuracy of the test, as when an ohmmeter calculates resistance it generally displays the sum of the resistance of the measuring leads, the contact resistances and the resistance being measured itself.

Milliohm meters - also known occasionally as the aforementioned microhmeters -are used to accurately make low resistance measurements on equipment that requires sensitive testing procedures. Such examples include the testing of PC equipment, which has delicate internal parts that could be damaged by excessive testing.

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