Check the listing for details. Schiotz Tonometer Precision Eye Measuring Intra-Ocular Pressure. Condition: New. Listed at 37.03 USD. TONOMETER SCHIOTZ IN BLUE PRESENTATION CASE WITH 3 WEIGHTS AND USER MANUAL DESCRIPTIONS:- Tonometer according to Prof. Schiotz for measuring the Intraocular pressure. All main parts are made of High Quality Brass and are chrome plated. Red needle enables easy reading of the scale. The instrument comes complete with 3 weights (5.5 gram, 7.5 gram, 10 gram)and conversion table in Blue Presentation case. Specification:- High quality agate bearing for an extremely long service life.Precision measurement on a scale of 0 to 20 subdivisions and 0 to -1 sub-divisions.Perfect reading of the scale with red pointer, All vital parts are made of stainless steel, other parts are chrome-plated Complete in a blue deluxe case. Supplied with three weights (5.5 g, 7.5 g, 10 g) and a conversion table.