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Ground Resistance Testers

The most complete line of Ground Resistance Testers available including the revolutionary Clamp-On Ground Resistance Testers and Tower Tester. The highest quality, the most complete, and the simplest to use.

Ground Resistance Testers

Whether you perform a simplified 2-Point, a more complete 3- or 4-Point Fall-of-Potential test, a soil resistivity test, or a touch potential test, AEMC® has the right instrument for you. Our revolutionary Clamp-On Ground Resistance Testers will save you both time and money. Whichever AEMC® ground tester you choose, expect it to be the highest quality, the most complete package, and the simplest way to learn and ensure ground integrity.

COMPARISON CHART
  • Ground Resistance Tester Model 3640

    Cat. #2114.92
    Range 0.01 to 2000Ω, Resolution 0.001 to 10Ω, 4-Point test
    The Digital Ground Resistance Tester Model 3640 performs ground resistance measurement. This direct reading tester is auto-ranging, so it automatically seeks out the optimum measurement range. The Model 3640 is easy to use - simply connect the leads, press to measure, and read. The large LCD (nearly 3/4" high) also indicates low battery status, overrange, and lead reversals.

    The Ground Resistance Tester Model 3640 is also available in complete Kits (150ft & 300ft).

  • Ground Resistance Tester Model 4620

    Cat. #2130.43
    Range 0.01 to 2000Ω, Resolution 0.001 to 10Ω, 4-Point test
    The Digital Ground Resistance Tester Model 4620 performs ground resistance and soil resistivity tests. This direct reading testers measures from 0 to 2000Ω, and is auto-ranging, so it automatically seeks outs the optimum measurement range.

    The Ground Resistance Tester Model 4620 is also available in complete Kits (150ft, 300ft & 500ft).

  • Ground Resistance Tester Model 4630

    Cat. #2130.44
    Range 0.01 to 2000Ω, Resolution 0.001 to 10Ω, 4-Point test
    The Digital Ground Resistance Tester Model 4630 performs ground resistance and soil resistivity tests. Measures from 0 to 2000Ω, and is auto-ranging (automatically seeks outs optimum measurement range). Designed to reject high levels of interference. Ideal for maintenance crews performing numerous tests.

    Also available in complete Kits (150ft, 300ft & 500ft).

  • Ground Resistance Tester Model 6470-B

    Cat. #2135.01
    Range 0.01 to 99,000Ω, Resolution 0.001 to 10Ω, Measures grounding resistance, earth coupling, soil resistivity, and bonding
    The Digital Ground Resistance Tester Model 6470-B performs grounding resistance, earth coupling measurement, soil resistivity and bonding tests. Measures from 0.01 to 99,000Ω, and is auto-ranging (automatically seeks outs optimum measurement range). Up to 512 test results can be stored in internal memory for later recall to the display or download to a computer running DataView (free) for analysis and report generation.

    Also available in complete Kits (300ft and 500ft).

  • Ground Resistance Tester Model 6471

    Cat. #2135.48
    Range 0.01 to 99,000Ω, Resolution 0.001 to 10Ω, Measures grounding resistance, earth coupling, soil resistivity, and bonding
    The Digital Ground Resistance Tester Model 6471 performs grounding resistance, earth coupling measurement, soil resistivity and bonding/connection tests. Measures from 0.01 to 99,000Ω, and is auto-ranging (automatically seeks outs optimum measurement range). Up to 512 test results can be stored in internal memory for later recall to the display or download to a computer running DataView (free) for analysis and report generation.

    Also available in complete Kits (300ft and 500ft).

  • Multi-Function Installation Tester Model C.A 6117

    Cat. #2138.07
    Measures voltage, current via clamp, power, waveforms, and harmonics; includes DataView® software

    Multi-function instrument for testing voltage, current via clamp, power, waveforms and harmonics. Stores up to 1,000 tests, which can be downloaded and processed with DataView® (included).

  • Ground Resistance Tester Model 6472

    Cat. #2135.51
    4-Point soil resistivity (Wenner or Schlumberger), 2- and 4-Wire bond testing, ground resistance testing, optically isolated USB communication
    The Digital Ground Resistance Tester Model 6472 performs bond resistance, ground resistance, soil resistivity, earth coupling, and Step & Touch potential tests. When used in combination with the GroundFlex® Adapter Model 6474 (factory supplied product only), Power Transmission Tower and Tower Leg Ground Resistance testing is also available. Up to 512 test results can be stored in internal memory for later recall to the display or download to a computer running DataView (free) for analysis and report generation.

  • GroundFlex Field Kit Model 6474

    Cat. #2136.03
    Includes GroundFlex® Adapter Model 6474 and Ground Resistance Tester Model 6472
    This is the only system on the market capable of testing ground resistance of individual power transmission tower legs (as well as total resistance) without disconnecting the overhead ground wire. Features include testing both ground resistance of tower legs (individually and total) and overhead ground wires. Measures leakage current through the tower legs. Tests at frequencies up to 5kHz to profile impedance.

  • Ground Resistance Tester Model 6416

    Cat. #2141.01
    Range 0 to 1500Ω, Alarm, Frequency selection, 300 measurement storage
    The Ground Resistance Tester Model 6416 measures ground rod and grid resistance and impedance without the use of auxiliary rods. Clamp-on ground resistance testers can be used in multi-grounded systems without disconnecting or de-energizing the ground system under test. The Model 6416 simply clamps around the grounding electrode or conductor and measures the resistance to ground.

  • Ground Resistance Tester Model 6417

    Cat. #2141.02
    Range 0 to 1500Ω, Alarm, Frequency selection, 2000 measurement storage, Bluetooth
    The Ground Resistance Tester Model 6417 measures ground rod and grid resistance and impedance without the use of auxiliary rods. Clamp-on ground resistance testers can be used in multi-grounded systems without disconnecting or de-energizing the ground system under test. The Model 6417 simply clamps around the grounding electrode or conductor and measures the resistance to ground. Includes Bluetooth for connecting to a computer running DataView, and an app for communication with an AndroidTM device.

  • Ground Tester Kit-150ft

    Cat. #2135.35

    Ground Resistance Test Kit for 3-Point Testing - 150ft

  • Ground Tester Kit-300ft

    Cat. #2135.36

    Ground Resistance Test Kit for 4-Point Testing - 300ft

  • Ground Tester Kit-500ft

    Cat. #2135.37

    Ground Resistance Test Kit for 4-Point Testing - 500ft

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AEMC Ground Testers
Three Pole tester, three point tester, four pole tester, four point tester, soil resistivity, fall of potential, earth coupling, bond testing, bond resistance, electrode resistance, auxiliary electrode,ground resistance tester, tower resistance tester, pylon tester, GroundFlex
Choose from the industry’s largest selection of ground resistance testers, including clamp-on models. AEMC instruments perform a variety of tests including: 2, 3, or 4-point, Fall-of-Potential, soil resistivity, touch potential, 2-Clamp, 1-Clamp and Step and touch potential.