The  new  generation  of Explorer  XRF  portable  X-ray  fluorescence   spectrometer   series  is mainly  used for metal materials reliability identification, alloy  grades rapid  identification,  soil heavy-metals field  testing and  field  in situ  multi-element analysis for  various  geological  ore, fully  meeting  the  market  demand  from  raw  materials  testing, process control  to  field  online analysis of various elemental composition in product testing.