Sewerin Drive-By SePem 155 Water Distribution System Leak Logger SystemSePem 155 Noise logger System for monitoring water pipe networks: sturdy convenient reliable Detect water losses early Leaks in water pipe networks can result in significant water losses. Thanks to systematic monitoring of the network with SePem data loggers, you can reliably identify existing leaks and catch new ones early on much faster than with conventional methods. Systematic leak detection The SePem system comprises the SePem 01 Master receiver