Hand-held metal and voltage detector with LED and audible signal. Locates live cables and metal objects in walls, floors and ceilings. Adjustable detector sensitivity for improved accuracy. Requires 1 x 9V (PP3) battery. Hand-held metal and voltage detector with LED and audible signal. Locates live cables and metal objects in walls, floors and ceilings. Adjustable detector sensitivity for improved accuracy. Requires 1 x 9V (PP3) battery.