Knob type grounding resistance meter, easy to operate method

● 3-wire measurement method (applicable to measurements A to D)/2-wire measurement method (applicable to measurements D)
Compliant with JIS and EN standards, with a wide measurement range of 0-1150 Ω
● Measurement frequency switching method to reduce the impact of power harmonics
Significantly reduce working hours! Standard configuration includes improved grounding rod and wire winding device