● Microprocessor-controlled.
● Earth resistivity (ρ) test.
● 200 measurement results can be saved in the memory and recalled on the display.
● Automatic C spike & P spike check.
● Interval between auxiliary earth spikes is 1.0~50.0m.
● 2-Wire test, 3-Wire test, 4-Wire test.
● LCM display.
● Auto ranging.
● Auto power OFF.
● Data hold.
● Optical USB to RS-232 data transmission.
● The stored data can be transferred to a PC.
● 2 optical LEDs are built-in for data transfer.

Specifications
● Earth resistance: 0-20Ω / 0-200Ω / 0-2kΩ.
● Earth resistance Accuracy: 0-20Ω: ±(2%rdg+0.1Ω). 0-200Ω,0-2kΩ: ±(2%rdg+3dgt).
● Earth voltage: 0-300.0V AC.
● Earth voltage Accuracy: ±(2%rdg+3dgt).
● Earth resistance resolution: 0-20Ω: 0.01Ω. 0-200Ω: 0.1Ω. 0-2kΩ: 1Ω.
● Earth resistivity: 0.06~6.28kΩ.m. 0.62~62.8kΩ.m. 6.28~628kΩ.m.
● Measuring system: Earth Resistance by constant current inverter 820Hz approx. 2mA.
● Operating / Storage Temp. & humidity: 0°C~40°C / -10°C~50°C, ≤80% R.H.
● Dimensions: 250(L) x 190(W) x 110(D)mm.
● Weight (battery included): Approx. 1500g.
● Power source: 1.5V (AA) × 8.
● Safety standards: EN 61010-1 CAT IV 300V. IEC 61557-1. IEC 61557-5. EN 61326-1.