Widely used in medical testing, food, petrochemical industry, environmental protection and monitoring, and other fields. Technical Parameters: Optical system:Czerny-turner CT grating monochromator, 1200/mmWavelength range:350-1020 nmWavelength accuracy:+/- 3 nmWavelength repeatability:≤1nmMeasurement range:0-199.0%T, 0-1.999A, 0-1999CPhotometric accuracy:+/- 1.0%TPhotometric repeatability:0.5% ...