... cGMP Approved, widely used in pharmaceutical industry. 300L Stainless Steel Fermenter Design and Manufacturing According to FDA&cGMP ... 00±0.05pH, autocontrol by adding acid and base, pH sensor (Mettler, Switzerland) and shielding lead (Mettler, Switzerland). fermenter ... detection and control 0-150±3% displaying precision 0.1%, sensor (Mettler, Switzerland) and shielding lead(Mettler, Switzerland) Feed ...