The MAC-51Bx – the most cost-effective all-purpose locating system on the market – consists of a magnetic locator similar to the most popular GA-52Cx model and a null-over-target pipe and cable locator capable of locating on two frequencies: 571Hz and 82.5kHz.
The receiver has a three position switch that lets you change modes "on-the-fly" between LO HI and MAG for cable and line tracing with break locating pinpointing a ferrous metal target or identifying and pinpointing an energized 50/60 Hz power line.
