Reichert Refractometer Duochek (F) 137584L0 is one of the many quality laboratory and scientific ... products we have to offer at very competitive pricing. Reichert Refractometer Duochek (F) 137584L0 / ... 55611-002 is part of a wide selection of Reichert Bench refractometers or polarimeters. Combining ... excellent quality with an affordable price, the Reichert Refractometer Duochek (F) 137584L0 / 55611-002 ... end user. If you have any questions about any of our Bench refractometers or polarimeters please do ... not hesitate to contact our customer service for further guidance. Handheld refractometers quickly ... and accurately determine freeze protection and percent concentration of engine coolants, battery...