Geotechnical & Geological Monitoring Equipment

Digital Earth Ground Resistance Tester

Model: BP-SR

Professional ground resistance and soil resistivity tester with precision 4-wire method, FFT technology, and automatic frequency control. Widely used in electric power, telecommunications, construction, and lightning protection.

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Key Features

Precision 4-wire, 3-wire, and simple 2-wire measurement methods

FFT (Fast Fourier Transform) technology for high precision

AFC (Automatic Frequency Control) technology

Unique anti-interference capability

Testing current reaches 20mA

6-bit LCD display with white screen backlight

High precision, high stability, and reliability for prolonged measurement

Technical Specifications

Model	BP-SR
Display Type	Digital Only, 6-bit LCD with white backlight
Measuring Range	0.000Ω ~ 30000Ω
Soil Resistivity Range	0.00Ωm ~ 9000kΩm
Grounding Voltage Range	AC 0.0 ~ 100.0V
Testing Voltage	DC 9 V
Accuracy Class	±2% rdg ±3 dgt
Operating Temperature	-10°C ~ 40°C; 80% rh below
Dimensions	400 × 245 × 335 mm
Testing Methods	Precision 4-wire, 3-wire, 2-wire
Testing Frequency	128Hz / 111Hz / 105Hz / 94Hz
Power Supply	DC 9 V

Applications

Widely used in electric power, telecommunications, meteorology, oil field, construction, lightning protection, industrial electrical equipment for earth resistance, soil resistivity, earth voltage, and AC voltage measurement.