The KATflow 200 hand-held clamp-on ultrasonic flowmeter has been designed to fulfil the specific customer requirement for an easy to use, lightweight and compact flowmeter for simple flow measurement applications. As the KATflow 200 weighs less than 700g, it is a very light and compact hand-held clamp-on flowmeter. As a result, it can easily be carried into locations which are difficultly to reach. Due to its IP 65 housing with rubber shock protection, the flowmeter is also very robust. The KATflow 200 can be equipped with an internal data logger, which is available in two sizes to store up to 30,000 or 100,000 samples.