The Mini-Duct Hunter™ 1/8″ & 3/16″ is a traceable duct rodder that offers a non-invasive solution for locating and mapping underground ducts and pipes measuring between 1/2 and 1-1/2 in. in diameter. The detectable fiberglass rod incorporates a 22 AWG copper trace wire that can be located at depths up to 10 feet. When the energized Mini-Duct Hunter™ rod is pushed into pipe, the signal radiates outward to the surface. A signal receiver detects the frequency applied to the Mini-Duct Hunter™, allowing the pipe to be traced inside walls, floors or underground.