What kind of control devices are implimented on fermentation tank?

In large scale brewing say like anhauser busch what kind of control devices are used on the fermentation tanks to ensure the proper conditions to make the most desirable yield.





If you would like you can answer this sin beer, say like any bioengineering fermentation process.What kind of control devices are implimented on fermentation tank?
Temperature control is the most vital. Also stirring is often used. Controlled atmosphere over the tank is also often used.