FT6041-91 Earth Tester With FT9847 And CT9848Extensive measurement functionality: choose the right measurement method for any application: 4 pole method (Wenner's 4 pole method): Measure soil resistivity when surveying a grounding design 3 pole method: Precisely measure ground resistance MEC (Measuring Earth with a Clamp) function: Measure ground resistance without disconnecting ground electrodes 3 pole method using 4 terminal measurement: Measure ground resistance values of several ohms or less
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