The compact orbital environmental shaker ES-20 is designated for general medical, biological, chemical and ecological investigations. Easy detachable construction of the thermostating chamber (Lego type), active heating mode of operation (fan), regulated by the “Omron” processor, ensure temperature stability. Platform’s fixating mechanism allow replace the different platforms (also for plates and Petri dishes) quickly. Detachable construction allow to use ES-20 separately as a shaker (OS-20 type) or as a incubator with an active heating of the internal medium. The main advantage of the shaker is an idependent control of the temperature, rotating’s frequency and time. The orbital environmental shaker ES-20 is applicable in all areas of laboratory research in biotechnology, molecular biology, biochemistry, microbiology, chemistry, medicine.