semi-auto chemistry analyzer A.C.220V 50 HZ dot matrix LCD display Big discount Test methodAbsorbency method,kinetic method,End point method,More calibration method,two point method,Double wave method,Turbidimetric methodCross contamination≤0.2% Wavelength range300-800repeatabilitycv≤0.1%wavelength340,405,450,492,510,546,578,630resolution0.001ABSWavelength accuracy≤±1nmSample volume100~9999ul, ...