$376.90 (as of 03/01/2018 16:25 PST details )
Features:
- 4 pole earth resistance measurement 0 to 209.9k with min resolution 0.001
- Auto ranging soil resistivity measurement 0 to 1999k m
- Advance filtering method based on FFT fast fourier transform reduces noise interference
- Data Memory 1000 sets
- Measureing Voltage Um optional auto selected 10Vrms 94Hz, 105Hz, 111Hz, 128Hz