si, mn, p, ni,mg element test Application: quicklyandaccuratelydetecttheironandsteelandothermetals,non-metallicmaterialsforavarietyofelements. Tech data: Analysis:photoelectriccolor-matchingmethod Range:0to1.999absorbancevalue,0to99.99%ofconcentrationvalue Test elements area:silicon,manganese,phosphorus,nickel,molybdenum,chromium,copper, magnesium,rareearthetc. Color-matchingtime:5seconds Analysisoferror:GB223,3-5-88standard Environmentalconditions:temperature:0-40°CRelativeHumidity:<65% WorkingVoltage:AC220V±10%50Hz≤50