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Earth Testers (38 Products)

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  1. Megger DET3TD Earth Tester - Kit
    All Megger Products
    Only 1 in Stock
    Free UK Delivery*
    Megger DET3TD Earth Tester
    Rating:
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    £558.00 £465.00
    • Measures earth resistance to 2000Ω
    • 2 and 3 point testing
    • Selectable 25V or 50 V output
    930 Reward Points
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    SKU: MEGET8
  2. Megger DET3TC Earth Tester
    All Megger Products
    4 in Stock
    Free UK Delivery*
    Megger DET3TC Earth Tester
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    £606.00 £505.00
    • Ground stake testing
    • Attached rod technique ability
    • Large LCD display
    1010 Reward Points
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    SKU: MEGET9
  3. Megger DET4TD2 Earth Tester - Spike kit
    All Megger Products
    Lead Time: 1-2 Weeks
    Free UK Delivery*
    Megger DET4TD2 Earth Tester
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    £718.80 £599.00
    • Two, three and four point testing
    • Stakeless testing
    • Failure indication
    1198 Reward Points
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    SKU: MEGET11
  4. Megger DET4TR2 24 Term Earth Tester - Case and spike kit
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    Only 1 in Stock
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    Megger DET4TR2 Rechargeable Earth Tester
    Rating:
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    £846.60 £705.50
    • 2, 3 and 4 point testing
    • Rechargeable
    • Suitable for use outdoors
    1410 Reward Points
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    SKU: 1000-324
  5. Megger DET4TC2 Earth Tester
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    3 in Stock
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    Megger DET4TC2 Earth Tester
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    £946.80 £789.00
    • IP54 safety ratings
    • Warning indicators prevent test failure
    • Simple one button operation
    1578 Reward Points
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    SKU: 1000-345
  6. Megger DET4TCR2 earth tester Clamp ready (Not included)
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    3 in Stock
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    Megger DET4TCR2 Rechargeable Earth Tester
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    £1,062.00 £885.00
    • ART (Attached Rod Technique) capability 
    • Multiple, user selectable test frequencies
    • Includes leads, stakes, calibration certificate and rugged carry case
    1770 Reward Points
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    SKU: 1000-346
  7. Megger DET4TC2 CLAMPS Earth Tester
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    Free UK Delivery*
    Megger DET4TC2 Earth Tester + Clamps
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    £1,494.00 £1,245.00
    • Free calibration certificate with your device, as well as leads, stakes and a hard wearing carry case 
    • ICLAMP and VCLAMP provided
    • ART and stakeless testing possible
    2490 Reward Points
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    SKU: 1000-365
  8. Megger DET4TCR2 + CLAMPS Earth Tester
    All Megger Products
    Lead Time: 1-2 Weeks
    Free UK Delivery*
    Megger DET4TCR2 Earth Tester + Clamps
    Rating:
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    £1,596.00 £1,330.00
    • Includes DET4TCR2 + Clamps
    • Perform ART and true stakeless testing
    • Wide testing range
    2660 Reward Points
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    SKU: 1000-366
  9. Megger DET4TCR2 Earth Tester, Clamps & ETK50 Earth Cables & Spikes Kit
    All Megger Products
    Free UK Delivery*
    Megger DET4TCR2 Earth Tester, Clamps & ETK50 Earth Cables & Spikes Kit
    Rating:
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    £1,899.60 £1,583.00
    • Conduct earth tests in outdoor environments
    • Included ICLAMP and VCLAMP enable advanced rod technique and true stake-less testing
    • Perform 2-pole, 3-pole and 4-pole tests and measure leakage current and ground noise voltage
    3166 Reward Points
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    SKU: MEG-DET4TCR2-EARTH-KIT
  10. Megger DET2/3 Earth Tester
    All Megger Products
    Free UK Delivery*
    Megger DET2/3 Earth Tester with a Choice of Accessories
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    As low as £4,014.00 £3,345.00
    • Measure earth electrode resistance and soil resistivity
    • Optimised for testing complex earth systems such as communications earth systems
    • Available in three models that differ in regards to their included accessories
    8028 Reward Points
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    SKU: 1008-9XX
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About Earth Testers

Grounding is an absolutely essential part of an electrical installation or system. Proper grounding ensures that the electrical system is safe for use at all times and that electricity flows to earth, rather than through a nearby conductor such as a human.

Grounding systems are actually different to conventional installations - whereas a normal electrical installation will have a ground wire built in to direct the flow of current, grounding systems only have current flow when there is a problem. Grounding systems create a path for current to flow, but during a problem, current can range from a couple of mA of unwanted static charge to induced voltages or fault currents of several thousand amps. Current flowing to ground through a grounding system is not constrained to follow any given path to earth as current would in a normal circuit.

Since this is the case, specialist earth testing equipment is required to ensure that earth grounding systems have overall resistance up to a maximum of 25Ω, which is the standard defined to ensure the overall safety of grounding installation. Although this is the overall standard of resistance, several devices experience problems with ground resistance of this level, and specialist earth equipment can be used with sensitivty electronic equipment to carry out proper earth grounding as necessary.

Earth testing equipment allows for different kinds of earth grounding to be installed correctly. No matter whether you're carrying out earth grounding in buildings, on equipment or electronics, there's a piece of equipment in store that can do that.

Proper grounding requires extensive testing procedures before, during and after the installation of the grounding. Earth testers and other earth testing equipment are used regularly in this field to carry out testing procedures on grounding, allowing users to test such things as voltage measurements (system voltage and static electricity voltages), current measurements (system currents and leakage currents) and resistance measurements (ground system resistance, soil resistance and soil PH measurements).

Earth Tester Types

There are many different types of earth tester, suitable for a wide array of different earthing applications. There's clamp-on ammeters, clamp-on leakage current meters, electrostatic locator meters, multimeters, three-terminal ground resistance meters, four-terminal ground resistance meters and soil pH meters. There's also a selection of accessories available for these different products that expand the overall capabilities of the tester. Example accessories used with earth testers included earth spikes, cable reels and attachable optional clamps.

The following equipment types are suitable for the following grounding applications:

Test or Measurement Test Instrument
Measuring circuit, system or ground voltages Standard voltmeter
Measuring circuit or system current Standard clamp-on ammeter
Measuring ground leakage current Clamp-on leakage current meter
Measuring static electrical charges Electrostatic discharge meter

Measuring earth ground system (ground rod/grid, ground connections

etc.) resistance without connecting the earth ground to the building grounding system

Clamp-on ground resistance meter

Measuring earth ground system (ground rod/grid, ground connections

etc.) resistance before connecting the earth ground to the building grounding system
3-terminal ground resistance meter
Measuring the earth's resistance (resistivity) 4-terminal ground resistance meter
Measuring soil pH pH meter

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