This Fisher Scientific Digital Multi-Tube Vortexer 02215452 is in great condition, has been tested and is guaranteed to be fully functional. This item came from a local lab that had surplus lightly used equipment. We urge customers to view all photos as they show overall condition, included accessories and functionality. Please feel free to contact us with any questions. Powerful permanent, continuous-duty motor delivers quiet, rattle-free mixing Top plate adjusts along two stainless-steel posts; removable for easy sample access Rugged corrosion-resistant, stainless-steel base Suction-cup feet dampen motion and prevent sliding Orbit: 3.6mm Microprocessor-controlled for precise, repeatable results LED display for speed and time Speed range: 500-2500rpm (25rpm increments) Programmable timer (1 sec. to 160 hrs.) Timed or continuous-run modes Pulsing program can be operated in either mode