Our polarimeter P1000-LED is used by numerous companies and institutes for basic lab applications and training, for example the experiment on saccharose inversion. It measures the optical rotation according to the half-shade principle, and the measurement results are read through an eyepiece and two noniuses.The P1000-LED features a sample chamber for tubes with a length of up to 220 mm, a polariser and an analyser. A high-performance LED is used as the light source whose ser vice life is up to 2000 times longer than that of conventional sodium discharge lamps the device therefore re quires only little maintenance and is very cost-effective. A high-quality metal stand and a pivoted cover make the equipment complete.The scope of delivery for the P1000-LED includes a 100 mm and a 200 mm measurement tube with a debubbler for the proper filling.This simple, analogue device can also be validated. The sample chamber is adapted to receive our quartz control plates for the calibration and adjustment.