Coating Thickness TesterDual Technology Features Automatic Selection of Magnetic Induction or Eddy Current Measurement Techniques Non-magnetic coatings (e.g. paint, zinc) on steel Insulating coatings (e.g. paint) on no-ferrous metals No-ferrous metals coatings on insulating substrates Menu operation systemTwo working modes: DIRECT and GROUP modeOne point calibration, two points calibration and basic calibration easily Delete single readings and all group readings easilyLow battery, error indication magnetic induction 0~1350umGuaranteed tolerance (of reading) (+/- 2.5%+2)umอ่านเพิ่มเติม