High precision grounding resistance tester for online sales. It is equipped with a measurement range of 0-20k Ω, a 5-inch color LCD screen, a USB charging port, storage function, and clock function for on-site measurement of ground resistance, soil resistivity, ground current, and ground voltage.
Details
The clamp shaped grounding resistance tester is equipped with a 32mm clamp, with a measurement range of 0-20k Ω.
- The clamp-on earth resistance tester is suitable for on-site measurement of grounding resistance, soil resistivity, grounding current, and grounding voltage.
- This product can measure grounding resistance using various measurement methods such as clamp meter method, two-wire method, three wire method, four wire method, and selection method.
- Adopting a 2.5-inch color LCD screen, the resistance tester has a USB charging port, storage function, clock function, and automatically stores 500 sets.
- This product supports Bluetooth communication function for Android system. After installing the APP, it can be tested on mobile devices or test records can be read.

Specifications
Model |
T-ERT-2300 |
Resistance Range |
0.00Ω~20kΩ |
Soil Resistivity Range |
0Ωm~9999kΩm |
Ground Current Range |
0.000mA~20A |
Ground Voltage Range |
0.0V~600.0V |
Earth Resistance Measurement Methods |
Clamp meter method, two-wire method, three-wire method, four-wire method, selection method |
Test Frequency |
128Hz/111Hz/105Hz/94Hz (AFC automatic frequency selection) |
Display Mode |
2.5-inch color LCD screen |
Short Circuit Test Current |
AC 10mA max |
Open Circuit Test Voltage |
AC 14V max |
Electrode Spacing Range |
1m~100m |
Weight |
5.1 kg |
Clamp Size |
65mm×32mm |
Tester Size |
307mm×98mm×56mm |
Test Line |
4 Pieces (red 20m, black 20m, yellow 10m, green 10m) |
Simple Test Line |
2 Pieces (red 1.6m, black 1.6m) |
Auxiliary Ground Rod |
4*Φ9mm×230mm (935g) |
Measurement Times |
more than 5000 times (short circuit test, test once, stop for 30 seconds and test again) |
Line Voltage |
measured below AC 600V |
Data Memory |
500 groups |
Audible And Visible Alarm |
"du—du—du" for alarming, press AL to turn on/off |
Automatic Shut-Down |
Automatic shutdown after 5 minutes of power on |
Shift |
Automatically |
External Magnet/Electric Field |
< 40A/m, < 1V/m |
Resistance Test Frequency |
>1KHz, 128Hz |
Interface |
USB interface |
Accessories |
Resistance Tester: 1PCS; Test Loop:1PCS; Test Ring: 1PCS; USB Charging Cable:1PCS; Charger: 1PCS; Ground Pin: 4PCS; Test Leads: 4PCS; Simple Test Leads: 2PCS; Tool Box: 1PCS |
Range and Accuracy
Measuring Function |
Measuring Range |
Accuracy |
Resolution |
Measuring Grounding Resistance with Clamp Meter |
0.010Ω~0.099Ω |
±(1%rdg+0.05Ω) |
0.001Ω |
0.10Ω~0.99Ω |
±(1%rdg+0.05Ω) |
0.01Ω |
1.0Ω~49.9Ω |
±(1%rdg+0.5Ω) |
0.1Ω |
50.0Ω~99.5Ω |
±(2%rdg+0.5Ω) |
0.5Ω |
100Ω~199Ω |
±(5%rdg+1Ω) |
1Ω |
Two-Three-Four-Wire Method for Measuring Grounding Resistance |
0.10Ω~20.00Ω |
±2%rdg±5dgt |
0.01Ω |
20.0Ω~200.0Ω |
±2%rdg±5dgt |
0.1Ω |
200Ω~2000Ω |
±2%rdg±5dgt |
1Ω |
2.00kΩ~20.00kΩ |
±4%rdg±5dgt |
10Ω |
Selective Method for Measuring Grounding Resistance |
0.10Ω~20.00Ω |
±2%rdg±5dgt |
0.01Ω |
20.0Ω~200.0Ω |
±2%rdg±5dgt |
0.1Ω |
200Ω~2000Ω |
±2%rdg±5dgt |
1Ω |
Soil Resistivity |
0.00Ωm~99.99Ωm |
Depends on the measurement accuracy of the R (ρ=2πaR a:1m~100m; π=3.14) |
0.01Ωm |
100.0Ωm~999.9Ωm |
0.1Ωm |
1000Ωm~9999Ωm |
1Ωm |
10.00kΩm~99.99k |
10Ωm |
100.0kΩm~999.9k |
100Ωm |
1000kΩm~9999kΩm |
π=3.14) |
1kΩm |
Ground Voltage 50Hz/60Hz |
AC 0.0~600.0V |
±2%rdg±5dgt |
0.1V |
Ground Current 50Hz/60Hz |
0.000mA~5.000mA |
±(2.5%rdg+1mA) |
0.001mA |
5.0mA~100.0mA |
±(2.5%rdg+5mA) |
0.1mA |
100mA~500mA |
±(2.5%rdg+10mA) |
1mA |
0.50A~20.00A |
±(2.5%rdg+0.5A) |
0.01A |
Applications
tool clamp-on earth resistance tester is available with a measuring range of 0.00Ω-20kΩ. The clamp earth resistance tester is widely applied in ground resistance measurement, and loop resistance measurement in fields such as electric power, telecommunications, meteorology, oil field, architecture and industrial electrical equipment, etc. When measuring the ground system with a loop, there is no need to disconnect the ground wire without an auxiliary electrode.

Tip: What is a clamp-on earth resistance tester?
The clamp-on earth resistance tester can measure the connection resistance of any looped system without using an auxiliary ground rod or interrupting the grounding of the equipment under test. As long as the ground wire or ground rod is clamped with the clamp head, the ground resistance can be measured safely and quickly. It can also be applied to multiple parallel grounding systems. The clamp-on ground resistance tester can measure the leakage current of 1MA, and the neutral line current can reach 20A. This function is especially important when the ground network to be tested contains large noise and harmonics.