The Teknetics ® Delta 4000 is a lightweight, comfortable and balanced metal detector that will have you hunting for hours. This metal detector features two-digit numerical target identification, a running depth display, three tone audio and an overload alarm system. The all metal mode detects all metal objects while the discrimination mode removes unwanted metals and pinpoint mode makes detection more accurate. FEATURES: Two-digit numerical target identification All metal mode detects all metals from iron and aluminum to gold and silver Discrimination mode removes unwanted objects Three tone audio provides reliable feedback Running depth display Pinpoint mode for accurate detection Overload alarm system