Profile: Teksco USA provides doppler ultrasonic flow meters and transit time flowmeter systems for clamp-on noninvasive & wetted sensor applications. The Compu-Flow™ model C5 doppler flowmeter system has features such as unlimited transducer cable length, digital signal, velocity in FPS and CLT-V5 transducer. The C5P portable ultrasonic doppler flow meter has a built-in microcomputer that gives instantaneous readouts in velocity, rate and totalization in engineering units.