PUTF201 clamp-on transit-time ultrasonic flow meter utilizes transit-time principle.The transducer is mounted outside surface of the pipe without requirements of flow stop or pipe cutting.It is very simple,convenient for installation,calibration and maintenance. Small,media,large three pairs of transducers meet different size pipeline measurement demand.Plus,select thermal energy measuring function to achieve completely energy analysis.Widely applied for processing monitoring water balance test district heating balance test energy efficiency monitoring as easy installation and simple operation advantages.