Detect with confidence with Garrett Super Scanner V Metal Detector, a security essential. This public safety metal detector exhibits ultimate sensitivity, detecting medium sized pistol from 9" distance; large knife from 6"; razor blades and box cutters from 3" distance; foil-wrapped drugs and tiny jewelry from 1”. This metal detector is self-calibrating, its digital microprocessor technology eliminates the need for periodic sensitivity adjustments. The security metal detector features a rugged, high-impact ABS case with reinforced coil compartment. The large 8" scan surface on the Garrett Super Scanner allows for quick, thorough scanning. No tools are required to change standard 9V battery (included), providing up to 60 hours of normal operation. Garretts metal detector sharp audible alarm and bright red LED indicates the detection of metal. The momentary push button on this law enforcement metal detector helps temporarily eliminate detection of nearby ambient metal such as rebar, metal walls and features a three-color LED indication: Green LED indicates ON; Amber LED indicates LOW BATTERY: Red LED indicates ALARM. Garrett Super Scanner V Metal Detector operating temperatures: -35° F (-37° C) to 158° F (70° C).