Series PSX2 Portable Ultrasonic Flowmeter Detectors are paired with Series PUX converters in order to utilize the transit-time difference for measuring flow rates in pipes from the outside. It is a compact and lightweight instrument incorporating the latest electronics and digital signal processing technologies, realizing high performance and easy operation. Series PSX2 Detectors are non-intrusive clamp-on sensors and are easy to install, require simple maintenance, and are free from pressureloss, choking, corrosion, and leaking.