Pro Flow Dynamics supplies top of the line tank level monitoring devices. We offer tank level gauges that measure and indicate the tank’s fuel. Our tank level indicator is highly efficient for liquid level measurement and monitoring purposes. Here at Pro Flow Dynamics, we provide thewell-known PIUSI OCIO level gauge. The OCIO is an inexpensive, self contained level gauge that continuously monitors the fuel level in tanks. Up to 12 tanks can be monitored continuously with the OCIO desk software that includes a PC interface.