... motor, AC Gear motor, Top drive (mechanical seal driving)Range50~1000 rpm 1 rpmImpellersTurbine impeller (SUS316L) Foam breaker (SUS316L)SensorMagnetic Hall ... adopted to measure, control and display the fermentation systemPower Supply220V 50/60Hz, Single phaseData StoragepH, DO, Pressure, Temperature and Agitation speedVessel ...