- Checking directly the circulation of a liquid
- Well adapted to piping with clean liquids, lubricating fluids, in heating and cooling systems, industrial water plants.

With its turbine, OPTIFLUX ECFV shows the circulation of a liquid through the transparent glass tube.

For flow rates above the last half of the range, the indicator can be mounted either horizontally or vertically.

For lower flow rates (first half of range) vertical mounting is recommended with rising fluid.