Low Resistance Ohmmeters
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Free UK DeliveryExtech 380462 Precision Milliohm Meter (220VAC)£420.00 £350.00
- High resolution of 100μΩ
- Five measuring ranges
- 4-wire cables with Kelvin clip connectors
350 Reward PointsPrice Match Guarantee380462 -
Free UK DeliveryExtech 380460 Precision Milliohm Meter (110VAC)£442.80 £369.00
- Indication of overrange
- 0.04 seconds sampling time
- Wire accessories included
369 Reward PointsPrice Match Guarantee380460 -
Free UK DeliveryExtech 380560 High Resolution Precision Milliohm Meter (110VAC)£462.00 £385.00
- HI/LO/GO testing possible
- Kelvin clip connection
- Range of applications it can be used for
385 Reward PointsPrice Match Guarantee380560 -
Free UK DeliveryExtech 380562 High Resolution Precision Milliohm Meter (220VAC)£550.80 £459.00
- Lowest resolution is just 0.01mOhm
- Built in bench top meter
- 4-wire test cable with Kelvin clip connectors included
459 Reward PointsPrice Match Guarantee380562 -
Free UK DeliveryExtech 380580 Battery Powered Milliohm Meter£718.80 £599.00
- Water-resistant case
- Four terminal Kelvin measurements
- Sizeable, backlit LCD screen
599 Reward PointsPrice Match Guarantee380580 -
Free UK DeliveryApplent AT518/AT518L Handheld DC Resistance Meter (Choice of Model)Call for Pricing
- Choice of two versions
- Wide measurement range
- Handheld, portable design
AT518/AT518L -
Free UK DeliverySeaward Cropico DO4000 Handheld Digital Microhmmeter£742.80 £619.00
- Portable, handheld solution for measuring low resistance levels
- Measurement range from 40mΩ to 4kΩ
- 100mA measurement current
619 Reward PointsPrice Match GuaranteeDO4000 -
Free UK DeliverySeaward Cropico DO4001 Handheld Digital Microhmmeter with Temperature£896.40 £747.00
- Precision portable microhmmeter for measuring low resistance levels
- Upgraded version of the Cropico DO4000 with temperature capabilities
- Auto/manual ranging
747 Reward PointsPrice Match GuaranteeDO4001 -
Free UK DeliverySeaward Cropico DO4002 Handheld Portable Microhmmeter£896.40 £747.00
- Handheld and portable low resistance ohmmeter
- Upgraded version of the DO4000 and DO4001
- High resolution and test current to 1A
747 Reward PointsPrice Match GuaranteeDO4002 -
Free UK DeliveryAim-TTi BS407 Micro Ohmmeter£914.40 £762.00
- Range: 1µΩ to 20kΩ
- Supports four-terminal measurement using supplied Kelvin clip leads
- Selectable 20mV clamp for ‘dry circuit’ testing
762 Reward PointsPrice Match Guarantee58122-0800 -
Free UK DeliveryApplent AT528/L Handheld Battery Meter - Choice of ModelCall for Pricing
- Two different versions available
- For use with a wide variety of batteries
- Handheld design for use in the field
AT528/L -
Free UK DeliveryMetrel MI 3242 MicroOhm 2A Low Resistance Ohmmeter£954.00 £795.00
- Portable solution for measuring low resistance levels
- Test current of up to 2A
- Internal memory storage with download to PC
795 Reward PointsPrice Match GuaranteeMI3242 -
Free UK DeliveryApplent AT516 DC Resistance MeterCall for Pricing
- Wide measurement range to 20MΩ
- Extended comparison and advanced functions
- High accuracy
AT516
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.