The RH40 portable flowmeter from Spire Metering Technology measures flow rate as well as temperature and thermal energy. It is a clamp-on product, which means no cutting of pipes, and is very easy and quick to install. It can measure pipe sizes ranging from 3/4 to 120 inches. It uses ultrasonic technology, which means that there are no moving parts to break, and it retains its accuracy over the lifetime of the meter. It can be used for water and waste treatment applications, pipeline leak detection, inspection, tracking and collection. It can also be used for water distribution network monitoring. It is capable of measuring bidirectional flow/energy. The ergonomic design allows the main unit to be held and operated with one hand. It has a large built-in data logger. 978/263-7100; www.spiremt.com.