can not apply the method of Wenner of the 4 terminal measurement, though the meter has 4 terminal measurement, does not work if C1 and P1 are shorted. Finally it works like a 3 meter measuring terminals. It was a disappointment. The image output at amazon, the meter which shows the applicable methods is not true, the meter brings another image where C1 and P1 are shorted in the 4-terminal method of measurement. Read more

Excellent Read more