The orbital shaker is a microprocessor controlled orbital shaking instrument for many general purpose shaking applications in chemical and life sciences laboratories. Its unique design digitally controls clockwise and/ or anti clockwise orbits to create superb mixing efficiency. The operation may be continuous or timed, with the integral electronic timer ensuing accurate repeatability of time- sensitive incubations. Speed and time settings are clearly displayed in the LED display. Its load weight is up to 10kg. An audible signal accompanies automatic switch- off to indicate the completion of a set time period. The interchangeable / stacking platforms and accessories enable a wide choice of vessels to be used, including bottles, flasks and beakers, dishes, boxes and petri-dishes.