The SITRANS FS290 is a battery or AC-powered, weatherproof, non-intrusive flow meter system used for monitoring or measuring liquid flow in pipes. This is easily accomplished using transducers that are mounted externally on a pipe and do not disturb the integrity of the pipe itself. The FS290 flow system contains a battery and charger, an ultrasonic transmitter, clamp-on transducers, and cables and mounts for the pipe.