OVERVIEW
GoodProx digital earth ground resistance tester is engineered to redefine precision and efficiency in electrical grounding system testing. As a professional portable earth resistance meter, this device is built with advanced microprocessor technology and high-quality ceramic components, delivering reliable and accurate measurements for a wide range of industrial, commercial and power sector applications.
Whether you are conducting routine safety inspections, preventive maintenance or fault diagnosis of grounding systems, this professional digital earth ground resistance tester for industrial use is your trusted partner for ensuring electrical safety compliance.
FEATURES
- High Precision Measurement: This high accuracy earth resistance tester features ±(2% + digits) accuracy, multi-range ground resistance testing (20Ω/200Ω/2000Ω/20000Ω) and 0-200V AC earth voltage measurement, serving as a professional earth voltage measurement tool.
- Backlit LCD Display: The large backlit LCD screen of our digital earth ground resistance tester ensures clear readouts in low-light conditions, with intuitive one-click operation for easy use.
- Portable & Rugged Build: This portable high precision ground resistance measurement tool is compact, lightweight and dust/impact-resistant, battery-powered for convenient remote on-site use as a premium portable earth resistance meter.
- Strong Anti-Interference: Our industrial ground resistance tester adopts advanced filtering and synchronous detection tech, minimizing electromagnetic interference for accurate readings in complex industrial environments.
- Practical Smart Functions: This ground resistance measurement tool offers data hold, auto range switching, low battery alert and over-range alarm, with data storage for easy testing record-keeping.
SPECIFICATION
|
Function
|
Description
|
|
Model
|
GP-RM-ER2K+
|
|
Power Supply
|
6VDC 4 PCS LR6 lkaline batteries
|
|
Clamp Size
|
65mm×32mm
|
|
LCD Size
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4 Digits LCD display, Screen: 47mm×28.5mm
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|
Range
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0.010Ω ~1200Ω
|
|
Resolution
|
0.001Ω
|
|
Accuracy
|
±1%±0.01Ω
|
|
Data Storage
|
99 sets
|
|
Data Upload Function
|
RS232 Interface (Optional)
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|
Auto Shutdown
|
Automatically power off after 5 minutes without any operate
|
|
Power Consumption
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≤50mA, Continuously working for 30 hours
|
|
Working Environment
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-20℃~55℃ 20%~80%RH
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|
Store Environment
|
-20℃~60℃; below 90%RH
|
|
Alarm Threshold Setting Range
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Resistance: 1Ω~199Ω
|
|
Audible and VisibleAlarm
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"Beep-beep-beep” alarm sound, alarm symbol flashing, pressALkey to turn on/off and setting
|
|
Interference Signal Recognition
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"Beep-beep-beep” indicator,NOISE symbol blinking
|
|
Protection Level
|
Double insulation
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|
Structural Feature
|
Clamp CT
|
|
Shift
|
Automatic shift
|
|
External Magnetic Field
|
<40A/m
|
|
External Electrical Field
|
<1V/m
|
|
Single Measurement Time
|
0.5 second
|
|
Resistance Measurement Frequency
|
>1KHz
|
|
Measured Current Frequency
|
50/60Hz Automatic
|
|
Low Battery Voltage Indicator
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When the battery voltage is lower than 5.3V, the low battery voltage symbol is displayed
|
|
Storage Full Indication
|
Storage data full of 99 sets,flashed display "MEM" symbol
|
|
Over Range Indication
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Exceed range indication “OLΩ”, “L0.01” or “OL A”
|
|
Tester Weight / Gross Weight
|
1160g / 2500g
|
|
Tester Dimension
|
285mm×85mm×56mm
|
|
Warranty
|
12 months
|
Measurement Range & Accuracy
|
Measurement
|
Range
|
Resolution
|
Accuracy
|
|
Resistance
|
0.010Ω ~ 0.099Ω
|
0.001Ω
|
±(1%rdg+0.01Ω)
|
|
0.10Ω ~ 0.99Ω
|
0.01Ω
|
±(1%rdg+0.01Ω)
|
|
1.0Ω ~ 49.9Ω
|
0.1Ω
|
±(1%rdg+0.1Ω)
|
|
50.0Ω ~ 99.5Ω
|
0.5Ω
|
±(1.5%rdg+0.5Ω)
|
|
100Ω ~ 199Ω
|
1Ω
|
±(2%rdg+1Ω)
|
|
200Ω ~ 395Ω
|
5Ω
|
±(5%rdg+5Ω)
|
|
400Ω ~ 590Ω
|
10Ω
|
±(10%rdg+10Ω)
|
|
600Ω ~ 880Ω
|
20Ω
|
±(20%rdg+20Ω)
|
|
900Ω ~ 1200Ω
|
30Ω
|
±(25%rdg+30Ω)
|
APPLICATIONS
This versatile digital earth ground resistance tester is widely used in various industries and scenarios where electrical grounding safety is critical:
- Power Systems: Substations, power distribution lines, transformer stations and power plant grounding system testing.
- Industrial Sector: Metallurgy, manufacturing, petrochemical and aviation industries for equipment grounding inspections.
- Telecommunications: Telecom base stations, data centers and communication tower grounding system maintenance.
- Building & Construction: Lightning protection grounding testing for commercial and industrial buildings.
- Routine Safety Inspections: Preventive maintenance and compliance testing for all electrical grounding systems.

PRODUCT DETAILS


Why Choose GoodProx Ground Resistance Measurement Tool?
✅ Unmatched Accuracy: Our high accuracy earth resistance tester ensures reliable measurement results for critical electrical safety checks
✅ Portable Convenience: The portable earth resistance meter design allows easy transportation and on-site use
✅ Durable Construction: Rugged industrial build for long-term use in harsh working environments
✅ User-Friendly: Intuitive operation with no professional training required
✅ Multi-Functional: All-in-one solution for ground resistance and earth voltage measurement
✅ Industry Compliance: Meets international electrical safety standards for reliable and safe use