The RU-2101 upgrade includes:
- Precision mass flow controllers and pressure sensors. 
- Upgrade from DataWolf to ControlWolf to provide computer control of hydrogen and air flow rates, fuel cell stack temperature, anode and cathode humidifying temperature, and stack current draw. 

ControlWolf Software:
ControlWolf is a premium version of the DataWolf Software. ControlWolf adds the ability for full computer control of the RU-2101, providing control of stack electric current draw, hydrogen and air flow rates, fuel cell stack temperature, hydrogen humidifying temperature, and air humidifying temperature. 

ControlWolf feature three methods of system control: Immediate Control, Symmetric Staircasing, and Step-by-Step Staircasing. Immediate Control allows the user to directly input the desire(d) value(s) & immediately implement them. Symmetric Staircasing allows the user to quickly program an experiment of symmetric current staircasing. Step-by-Step Staircasing allows the user to program each step of a detailed experiment and save the experiment for future use.