Self-Calibrating type Handheld Metal Detector is fitted with sharp audible alarm and bright red light emitting diode. The Handheld Metal Detector has large 8" scan surface and provides three-colour LED indication. The Metal Detector is available in rugged, high-impact acrylonitrile butadiene styrene case with reinforced coil compartment. Self-Calibrating type Handheld Metal Detector comes with momentary push button.