The AquaProbe FEA100 / FEA200 flow sensor is designed for measurement of the velocity of water. The flow sensor is available in four standard lengths and can be installed in any pipeline of internal diameter from 200 mm (8 in.) to 8000 mm (360 in.), through a small tapping. The flow sensor is designed for use in survey applications such as leakage monitoring and network analysis and in permanent locations where cost or space limitations preclude the use of conventional closed pipe meters.