1.set wavelength automatically 2.error free to adjust 3.ensure stability 4.calibration restore XO-1101,XO-1102,XO-1500,XO-1502 are universal types of spectrophotometer, mainly used for basic test of following field,such as:food sanitation,drug analysis,education,scientific research etc..Such series spectrophotometers possess advantages of high accuracy,good stability and strong durability.Key ...