The shaker stirrer F340 is ideal for all the diagnostic and hematology laboratories as well as series applications. It is composed of a sheet steel that is coated with an acid-resistant epoxy paint. The shaker performs stability and silence. It is capable of withstanding vibration. It is equipped with an induction motor making the shaker be maintenance-free. It is also comprised of an illuminated green ON/OFF switch and two knobs to set the operating time and the number of blows in each minute. The constant speed is provided by the electronics in the device.