The CERTOMAT&reg BS-1 requires less than 10 square feet of floor space (46 inches x 30 ¾ inches) and up to three cabinets can be stacked without any reduction in shaking speeds. The interior chamber offers capacity for up to six-liter Erlenmeyer flasks. All key parameters-speed, temperature and light, time cycles-are user programmable through a state-of-the-art digital controller and are displayed on a four line, twenty-character alphanumeric LCD screen with multi-language support. This programming feature allows for true real time control of all cultures. Up to five four-step programs can be stored and password protected. A hygienic, highly polished stainless steel interior and removable spill tray enables easy clean up of accidental spills. The patented shaker drive mechanism with adjustable orbit allows each unit to be converted to either a 25 or 50 mm orbit on-site through a mechanical adjustment to the shaking mechanism. The unique triple eccentric drive features adjustable mass compensation, which allows for quiet and reliable operation at speeds to 400 rpm even under maximum loads.