DIGIT FRIABILITY TEST APPARATUS (DOUBLE DRUM) – GUPTA BRAND 5000LT70 Posted on March 3, 2017September 21, 2021 by admin Measure4 obession Strenth of Tablets With programmable timer. Rotation Speed 25 rpm +_ 1, auto & manual mode of operation with 2 acrylic drums. Result are display on 3 digits LED display and it has 3 digit presetable control