... or other met GARRETT THDThe THD Tactical Metal Detector is a rugged, compact hand-held detector with silent screening.The ... an Amber LED.No tools are required for battery replacement, making a simple 9V battery replacement quick and easy.Completely waterproof and ... plastic, the THD withstands rugged treatment.The unit comes with a heavy-duty, ballistic-weave holster. Features• Highly sensitive, needs ...