Applanation Tonometer Easy to add on to any HS typr slitlamp/ 2 Japanese Cones / measuring range upto 80mm OF Hg. Fits onto all haag-Striet type slit - lamps. Provides accurate reading using the Imbert - Fick law. Measuring range from 10mm of Hg to 80mm of Hg, read directly off the graduation scale. 3 measuring optical cones are provided for longer life to the instrument. Calibration system is provided with the instruments. Qty :