Accomplish both test tube and microhematocrit separations with the new Combo
centrifuge. Simply choose a box (with or without a digital tachometer) and choose
your rotors. The Combo spins either test tubes, capillary tubes or microtubes by
simply changing rotors � no tools required! Achieve hematocrit separations in less
than five minutes at 12,000 rpm; then accurately determine results with the
included reader disc. Other features include variable speed control, 30-minute
timer, rubber feet, and all-metal body construction.