SePem 155 data loggers from Hermann Sewerin GmbH can help reliably identify existing leaks and catch new ones early on. In relation to the size of a measuring area, the volume of water initially escaping from a new leak is usually so low that it cannot be clearly distinguished from minimum nighttime consumption when measuring the flow. However, the data logger is designed to report the leak after just one night. It is ideal for mobile use and can also be used for the stationary monitoring of water supply networks. Its simple and intuitive menu navigation provides fast and reliable results and can also be reliably operated by less-experienced users. The measuring times and periods of radio activity are freely programmable. 888-592-9916; www.sewerin.com.