Structure and Principle                                                                                                  Based on the thermal principle, LOSEN Industrial’s sealed probe contains two resistors, one of which is heated and serves as the sensing resistor, while the other is unheated and serves as the reference resistor. When the medium flows, heat is carried away from the heated resistor, causing its resistance value to change. The difference between the two resistance values is used as the basis for determining the flow velocity.                                                                                                   

Features                                                                                                                      No moving parts, maintenance-free, easy installation. One model is suitable for various pipe diameter requirements. The switch point is continuously adjustable, with extremely low pressure loss and a compact structure. LEDs indicate the flow trend and switch status.                                                                                               

Applications                                                                                                                Suitable for both gas and liquid. It can be used in pneumatic and hydraulic systems, for flow interruption monitoring of circulating water, cutting fluid, and lubricating oil, as well as for dry-run protection of pumps.