Low cost easy to use digital listening stick, designed to listen at access points along the pipeline for unusual noises and / or leak noises. The FSB-8D also gives a digital value to the noise
level, so fast and easy comparisons can be made of various sections of the line. Designed for the water department survey team for the fast detection of potential water loss areas. This method is a
quick way to survey large areas for potential leaks before you use the HG-10All.