www.pmmag.com/articles/88186-gen-ear-leak-detection-technology
Gen-Ear Leak Detection Technology
January 1, 2005

The new Gen-Ear(tm) from General Pipe Cleaners blends the latest in filter, headphone and sensor technology for an advanced acoustical leak detection system. Its versatile design quickly and accurately locates leaks in PVC, cast-iron, copper and steel lines. It also pinpoints problems in a wide variety of work, soil and surface conditions.
Circle 61