Low Resistance Ohmmeters

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Seaward Cropico DO4000 Handheld Digital Microhmmeter

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£742.80 £619.00
- Portable, handheld solution for measuring low resistance levels
- Measurement range from 40mΩ to 4kΩ
- 100mA measurement current
619 Reward Points

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DO4000

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Lead Time: 1-6 Days

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Seaward Cropico DO4001 Handheld Digital Microhmmeter with Temperature

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£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 Points

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DO4001

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Lead Time: 2-3 Weeks

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Seaward Cropico DO4002 Handheld Portable Microhmmeter

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£896.40 £747.00
- Handheld and portable low resistance ohmmeter
- Upgraded version of the DO4000 and DO4001
- High resolution and test current to 1A
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DO4002

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Seaward Cropico DO4A Portable Digital Ohmmeter

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£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 Points

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DO4A

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Lead Time: 1-2 Weeks

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Seaward Cropico DO7e Low Resistance Digital Micro Ohmmeter

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£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 Points

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DO7E

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Lead Time: 1-2 Weeks

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Seaward Cropico DO7 Portable Digital Micro Ohmmeter

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£2,758.80 £2,299.00
- Portable, rugged low resistance ohmmeter suitable for a wide variety of applications
- Highly accurate four terminal measurements eliminate lead resistance
- Wide measurement range with current of up to 10A
2299 Reward Points

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DO7

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Seaward Cropico DO7010 Portable Digital Microhmmeter

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£2,758.80 £2,299.00
- Portable microhmmeter for precision low resistance measurements
- Built-in datalogging capabilities
- Up to 10A test current
2299 Reward Points

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DO7010

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Seaward Cropico DO5002 Digital Microhmmeter - Low Current Version

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£2,791.20 £2,326.00
- Lower current version of the DO5000 and DO5001
- Datalogging capabilities - store up to 4000 records
- Variable test current, wide measurement range and highly accurate results
2326 Reward Points

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DO5002

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Lead Time: 1-6 Days

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Seaward Cropico DO7 Plus Portable Digital Micro Ohmmeter with Memory

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£3,270.00 £2,725.00
- Low resistance ohmmeter with range from 6mΩ to 6kΩ
- 10,000 record internal memory storage with download to PC
- Built-in cooling curve plotting
2725 Reward Points

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DO7PLUS

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Seaward Cropico DO5000 Mains-Powered Digital Low Resistance Ohmmeter

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£3,570.00 £2,975.00
- Bench-based low resistance ohmmeter powered by mains connection
- Programmable measurement current up to 10A
- Built-in datalogging capabilities - store up to 4000 date/time stamped records
2975 Reward Points

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DO5000

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Seaward Cropico DO5001 Battery/Mains Power Low Resistance Ohm Meter

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£4,798.80 £3,999.00
- Measure low resistance levels with high precision
- Upgraded version of the DO5000 with mains/rechargeable battery power
- Datalogging capabilities
3999 Reward Points

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DO5001

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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 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.