The ez-Control accurately controls pH, Temperature, Dissolved Oxygen, Foam/Level and Agitation in bioreactors and fermentors. The intuitive color touch screen interface guides the user through the various operations. Adaptive control features allow the user to focus on the process while the controller keeps tight control on the important process parameters. What makes this controller unique are its ease of use, its small footprint, its flexibility and its accurate control. The optional extended I/O board offers an additional 8 analog inputs, 4 analog outputs, 8 digital inputs and 8 digital outputs while the USB sensor support further expands the capabilities of this advanced control system. Examples of supported USB devices are Sartorius balances (gravimetric feed or harvest control), Hamilton^® ARC, Mettler Toledo ISM^®, Buglab OD sensors, Aber Futura biomass sensors, Lumisens DO₂ sensors and many others.