The UF series is an innovative design that provides a high accuracy, non-invasive, flow measurement device at a lower cost than other similar systems. The flow path is designed to minimise pressure drop and, having no moving parts within, will not clog or jam. The unit is available with a PNP pulsed open collector (open drain), NPN pulsed, analogue 4-20mA or 0-5V output, selectable by cable connection.