Time range 0.1 to 9.9 min., 1 to 99 min.; time step interval 0.1 or 1 min, ; drop counter ranges 1 to 99, 10 to 990 max 5 drops/sec; 200 tubes, 20 racks; ambient temp 0 to 45 degrees c; tube sizes 15 5o 18 mm dia., 75 to 200 mm l; 50 cm d, 33 cm w, 20 cm h w/o tubes, 34 cm h with 160 mm tubes, drop counter head with polytetrafluoroethylene tubing, 20 rack carriers; 2 dust covers; rods for drop counter, siphon stand, recorder cable, 2 rack trays, 2 apparatus masts, fuses, and instruction manual; electric flow-stop valve, electronic counter; hermetically sealed contacts
