Low Resistance Ohmmeters
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Free UK DeliveryApplent AT851 Battery Ageing TesterCall for Pricing
- Determine battery ageing
- Several comprehensive testing modes
- Benchtop-based instrument
AT851 -
Free UK DeliveryApplent AT512 Precision DC Resitance MeterCall for Pricing
- Wide DC measurement range
- High precision
- Benchtop-based instrument
AT512 -
Free UK DeliveryExtech UM200 High Resolution Micro-Ohm Meter£1,426.80 £1,189.00
- Resistance measurements (low)
- 3000 record memory
- Auto and manual ranging
1189 Reward PointsPrice Match GuaranteeUM200 -
Free UK DeliverySeaward Cropico DO4A Portable Digital Ohmmeter£1,518.00 £1,265.00
- Field-portable solution for performing low resistance measurements
- 40mΩ - 4kΩ measurement range
- Rechargeable batteries and mains powered capabilities
1265 Reward PointsPrice Match GuaranteeDO4A -
Free UK DeliveryApplent AT526 AC Resistance Meter / Battery Resistance MeterCall for Pricing
- High accuracy, high precision battery tester
- Measures both AC resistance and DC voltage
- High quality full colour screen
AT526 -
Free UK DeliveryApplent AT525 Handheld Battery MeterCall for Pricing
- Handheld, portable design
- Test AC resistance and DC voltage
- Wide measurement range
AT525 -
Free UK DeliveryApplent AT5110 Multi-Channel DC Resistance MeterCall for Pricing
- 10 channel measurements
- Range up to 30kΩ
- High accuracy of 0.05%
AT5110 -
Free UK DeliveryChauvin Arnoux CA6240 Microhmmeter£2,244.00 £1,870.00
- Small, lightweight and ergonomic design
- Kelvin clamp cables reach 2 metres
- Automatic measurement mode
1870 Reward PointsPrice Match GuaranteeP01143200 -
Free UK DeliveryMetrel MicroOhm MI 3250 Low Resistance Ohmmeter£2,278.80 £1,899.00
- Measure low resistance with a high degree of accuracy
- Test current up to 10A
- Built-in memory storage with download to PC
1899 Reward PointsPrice Match GuaranteeMI3250 -
Free UK DeliverySeaward Cropico DO7e Low Resistance Digital Micro Ohmmeter£2,282.40 £1,902.00
- Perform low resistance measurements from 6mΩ to 600Ω
- Portable unit housed inside its own rugged carrying case
- Up to 415V rms input protection
1902 Reward PointsPrice Match GuaranteeDO7E -
Free UK DeliveryApplent AT515 High Precision DC Resistance MeterCall for Pricing
- High precision DC resistance meter ideal for a wide variety of applications
- Range from 0.1μΩ up to 1.2GΩ
- Adjustable measurement speed
AT515
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 resistance.
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, onboard keyboard entries, and more!
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.