TURCK's inline flow sensors operate using the calorimetric flow principle, which detects the transfer of heat in thermally conductive fluids. With TURCK's inline flow sensors, the temperature elements are bonded directly to the outside of a flow through tube. This construction provides fast response times, low flow rate detection and pulsed flow monitoring. Additionally, viscous fluids can flow freely through the fully ported sensor, since the flow does not need to be disrupted to be detected.