Erythocyte Sedimentation Rate (E.S.R.) analyzer 20 test tubes positions, compact dimensions, fast and easy and intuitive to use. LCD Touch screen with backlight display and internal thermal printer. The results are expressed in mm/hour as in the traditional Westergren method. • Random access • 20 test tubes positions • 50 samples / hour • Testing time 24 minutes. Dimensions 31 x 31 x height 18 cm. Weight about 4 Kg.