Detect Objects: Metal(Iron nail iron covering aluminum ring small aluminum product coins gold bronze silver)Detection Mode: All Metal Discrimination Operating Frequency: 5KHZ Power Supply: 6 x 1.5V AA Alkaline Batteries (Not Included)Operating Current: Standby 10mA(LCD with backlit color 80mA) Max 70mA(LCD with backlit color 150mA)Operating Voltage Range: 9VDetection Indication: Mechanical Pointer Mode Audio ModeControl: Power SwitchSensitivity: Adjustable Detection Depth: 10-30cm / 3.94-11.81inchVolume: AdjustableAdjustable Height of Detector: 78-107cm / 30.71-42.12inchApplication: Testing metal foreign body of raw materials fuel and food Detection of underground pipeline & line Archaeology Exploration Found buried treasures of gold silver and metal artifacts The acquisition of scrap metal industry Customs and safety inspection Police department detective search Detection of interpol search Checking metal foreign bodies in express delivery and luggage. Operating Temperature: -15~45℃ / 5~113 Storage Temperature: -20~60℃ / -4~140 Item Size: 107 * 27 * 16.5cm / 42.12 * 10.63 * 6.50inItem Weight: 862g / 1.90 lbPackage Size: 54 * 22 * 11cm / 21.26 * 8.66 * 4.33inPackage Weight: 1.28kg / 2.83 lbNote: The search coil is waterproof but the control housing is not waterproof.Package List:1 * Metal Detector Main Unit1 * Armrest1 * Connecting Rod 1 * Search Coil1 * Search Coil Knob1 * User Manual