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ES3001 Soil Resistivity Tester

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Two three four-wire measure grounding resistance, soil resistivity;

Ground voltage, AC voltage measurement

Ambient temperature and humidity

23℃±5℃,below 75%rh


8.4V lithium battery (built-in)

Interference voltage

<20V (should be avoided)

Interference current

<2A (should be avoided)

Measure R electrode spacing


Measured electrode spacing


Auxiliary ground resistance

Reference condition <100Ω, working condition <5kΩ


Grounding resistance: 0.00Ω~30.00kΩ

Soil resistivity: 0.00Ωm~9999kΩm

Grounding voltage: 0.00V~100.0V

measurement mode

Precise four-wire、 three-wire measurement, simple two-wire measurement

Measurement methods

Grounding resistance: rated current change pole method

Soil resistivity: four-pole method

Ground Voltage: Average Rectification(between S-ES interface)

Test frequency


Short circuit test current

> 20mA (Sine Wave)

Open circuit test voltage

AC 28V max

Electrode spacing range

Can be set 1m ~ 100m

Change gear

fully automatic shifting 0.00Ω ~ 30.00kΩ

fully automatic shifting 0.00Ωm~9000kΩm


Controllable gray screen backlight, suitable for use in dim places

Display mode

4-bit large LCD display, gray screen backlight

Measurement instructions

LED flashing indicator during measurement

LCD size


LCD display field


Instrument size


Standard test line length

4 strips:red 15m,black 15m, yellow 10m,green 10m each one

Simple test line

2strips:yellow 1.6m,green 1.6m each one

Auxiliary Grounding rod


Measure time

Ground voltage:about 3 times/sec;

grounding resistance、soil resistivity: about 7 seconds/time

Line voltage

Measurement below AC100V (ground voltage measurement function cannot be used to measure commercial power)

USB interface

With USB interface, software monitoring, storage data can be uploaded to the computer, save and print

Communication Line

One USB communication line, 1.5m long

Data storage

500 groups, “MEM” storage indicates, flashing “FULL” symbol indicates that the memory is full

Data review

Data review function: “MR” symbol display

Overflow display

Over-range overflow function: “OL” symbol display

Interference test

Automatic identification of interference signals, “NOISE” symbol indication when the interference voltage is higher than 5V

Auxiliary grounding test

With auxiliary ground resistance test function, 0.00KΩ ~ 30kΩ (Rh max = 3kΩ +100R <50kΩ; Rs max = 3kΩ +100R <50kΩ)

Alarm function

Alarm when the measured value exceeds the alarm setting value

Battery voltage

Real-time display of battery power, reminding timely charging when battery voltage is low

Automatic Shutdown

“APO” Indicates, automatic Shutdown After 15 Minutes

Power consumption

Standby: 40mA Max(Backlight off)

Turn on backlight: about 43mA

measuring:75mA Max(Backlight off)


Instrument: 2450g(including battery)

Test lines:1300g

Auxiliary grounding rod: 850g(4PCS)

Working temperature and humidity

-10℃~40℃;below 80%rh

Storage temperature and humidity

-20℃~60℃;below 70%rh

Overload protection

Grounding resistance:AC 280V/3 seconds between H-E and S-ES ports

Insulation resistance

20MΩ以上(500V between circuit and housing)

Pressure resistance

AC 3700V/rms(between circuit and housing)

Electromagnetic properties


Suitable for safety regulations

IEC61010-1(CAT Ⅲ 300V、CAT IV 150V、pollution level



IEC61557-1(grounding resistance);

IEC61557-5(soil resistivity);

JJG 366-2004.

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