Earth Testers (38 Products)

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  1. UNI-T UT521 Earth Ground Tester kit All UNIT Products
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    UNI-T UT521 Digital Earth Resistance Tester
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    • Datahold and data logging
    • Simple two-wire testing and precision three-wire testing
    • Range selection
    278 Reward Points
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    SKU: UT521
  2. Extech 382252 Earth Ground Resistance Tester Kit All Extech Products
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    Extech 382252 Earth Ground Resistance Tester Kit
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    • Comes complete with test leads and two auxiliary Earth bars
    • AC/DC voltage, resistance, and continuity testing
    • Auto power off
    348 Reward Points
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    SKU: 382252
  3. Metrel MI2126 Earth Resistance Tester All Metrel Products
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    Metrel MI2126 Earth Resistance Tester
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    • Measure earth resistance
    • Portable, weighs only 400g
    • Three-button simplistic controls
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    SKU: MI2126
  4. Kewtech Digital Earth Resistance Tester with Soft Carry Case kit All Kewtech Products
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    Kewtech KEW4105A Digital Earth Resistance Tester
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    • Three earth resistance measurement ranges - 20, 200 and 2000 Ohms
    • Housed in a protective, dust and drip proof case
    • 2 wire simplified measurement system
    498 Reward Points
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    SKU: KEWET1
  5. Robin Amprobe KMP7010 Earth Resistance Tester kit All Robin Amprobe Products
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    Robin Amprobe KMP7010 Earth Resistance Tester
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    • Earth resistance measurements across three ranges
    • Also measures voltage
    • 2 and 3 point testing
    508 Reward Points
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    SKU: 3730256
  6. DiLog DL9062 Earth Resistance Tester All DiLog Products
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    DiLog DL9062 Earth Resistance Tester
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    • Earth resistance tester capable of measuring ground, low level regular and liquid resistance, as well as measuring resistance in earthing systems
    • Can perform continuity tests and take voltage measurements for AC and DC systems
    • Earth resistance measurement range of 20Ω to 2000Ω

     

     

    530 Reward Points
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    SKU: DL9062
  7. Martindale E1612 4-Wire Earth Resistance Tester Kit All Martindale Products
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    Martindale E1612 4-Wire Earth Resistance Tester
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    • 4-wire, 3-wire and 2-wire testing
    • Auto-ranging
    • Comes housed in protective case with handle
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    SKU: METE1612
  8. Metrel MI3123 SMARTEC Earth Tester All Metrel Products
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    Metrel MI3123 SMARTEC Earth Tester
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    • Simple push button interface designed for use with gloves
    • Comes with rechargeable batteries, rods and test leads
    • Ergonomic, handheld shape
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    SKU: MI3123
  9. Megger DET3TD Earth Tester - Kit All Megger Products
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    Megger DET3TD Earth Tester
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    • 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
  10. Megger DET3TC Earth Tester All Megger Products
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    Megger DET3TC Earth Tester
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    • Ground stake testing
    • Attached rod technique ability
    • Large LCD display
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    SKU: MEGET9
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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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