Product name
Large-scale Grounding Grid Earth Resistance Tester
Impedance measurement range
0~150Ω
Measurement error
±(reading*2%+0.005Ω)
Maximum output voltage
AC 420V (45Hz,55Hz, double frequency, sine wave)
Maximum output current
AC 3A (45Hz,55Hz, double frequency, sine wave)
Anti-jamming capability
Anti- frequency 50Hz voltage 10V
Power supply
AC 220V±10%, 50Hz