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Earth Testers (38 Products)

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  1. Metrel MI2126 Earth spike tester
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    Metrel MI2126 Earth Resistance Tester
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    £211.20 £176.00
    • Measure earth resistance
    • Portable, weighs only 400g
    • Three-button simplistic controls
    352 Reward Points
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    SKU: MI2126
  2. Metrel MI3123 SMARTEC Earth Tester
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    Metrel MI3123 SMARTEC Earth Tester
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    £510.00 £425.00
    • Simple push button interface designed for use with gloves
    • Comes with rechargeable batteries, rods and test leads
    • Ergonomic, handheld shape
    850 Reward Points
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    SKU: MI3123
  3. Metrel MI3290GP Earth Analyser - GP
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    Metrel MI3290GP Earth Analyser - GP
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    £4,304.40 £3,587.00
    • Includes licence key for Grounding of Pylons functionality of Earth Analyser
    • Support for single or automated measurements
    • A wide variety of measuring clamps
    7174 Reward Points
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    SKU: MI3290GP
  4. Metrel MI3290GL Earth Analyser - GL
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    Metrel MI3290GL Earth Analyser - GL
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    £4,526.40 £3,772.00
    • Includes licence key for Grounding and Lightning functionality of Earth Analyser
    • 3.4’’ colour LCD display with a touchscreen
    • Carry out Earth measurements using different methods 
    7544 Reward Points
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    SKU: MI3290GL
  5. Metrel MI3290GF Earth Analyser - GF
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    Metrel MI3290GF Earth Analyser - GF
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    £5,880.00 £4,900.00
    • Licence key for Grounding and voltage Funnel functionality of Earth Analyser
    • 3.4’’ colour LCD display with a touchscreen
    • Mains or battery powered
    9800 Reward Points
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    SKU: MI3290GF
  6. Metrel MI3290GX1 Earth Analyser - GX1 Set (Earth Kit)Back  Reset  Delete  Duplicate  Save  Save and Continue Edit
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    Metrel MI3290GX1 Earth Analyser - GX1 Set
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    £5,904.00 £4,920.00
    • Battery or mains powered
    • Includes GX1 Set - additional accessories
    • Full colour touch screen functionality 
    9840 Reward Points
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    SKU: MI3290GX1
  7. Metrel MI3290GX4 Earth Analyser - GX4 (Earthing Systems)Back  Reset  Delete  Duplicate  Save  Save and Continue Edit
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    Metrel MI3290GX4 Earth Analyser - GX4 Set
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    £7,526.40 £6,272.00
    • Perform all types of earth measurement
    • 3.4’’ colour LCD display with touchscreen
    • High degree of protection
    12544 Reward Points
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    SKU: MI3290GX4
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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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