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  • Sonel SA - Best measurements instruments for electricity
  • Determining direction of underground installation with LKZ-1000 set
  • Determining underground installation depth with LKZ-1000 set
  • How to check soil resistivity? Earth ground resistance and resistivity Sonel MRU-200
  • MRU-200 Earth Resistance and Resistivity Meter
  • Sonel PQM-702 Power quality analyzer Complies with EN 61000-4-30 Class A - Anti-Thief Alarm