Megger hl5 mini leak detector megger hl5 r the megger hydrolux hl5 mini water leak detection unit is a professional and very flexible device with both visual and audible indication of the leak and with wireless transmission of the leak noise supplied with wireless headphones with fm receiver 2 x aa batteries for hl5 2 x aaa batteries for headphones 1 x extension rod and magnet 1 x transport case 1 x set of operating instructions megger hl5 r mini water leak detector