The P1000-LED measures the optical rotation according to the half-shade principle and the measurement results are read through an eyepiece and two noniuses. It is commonly used in hospitals and pharmacies for incoming/outcoming goods inspection or control of product. It is also a great option for training and experiments such as kinetics of cane sugar inversion, mutarotation of glucose, and the determination of the concentration of polysaccharides through amylolysis. This analogue device can be validated; the sample chamber is adapted to receive quartz control plates for calibration and adjustment.