Waterproof search coil: lets you search for metal objects under shallow water.Adjustable stem: lets you adjust the detector's length for comfortable use.Handle and elbow support: can let you carry and operate your detector comfortably, to make sure this detector is easy for people of different sizes, ages.Detection indication: audio alert and pointer indicate the detection of metal.Wide range of applications: suitable for finding and testing metal objects, gold and silver jewelry, coins, relics, etc. Whether you are a budding treasure hunter or an experienced metal detecting hobbyist, you can easily use it.Specifications:Material: ABS+metalColor: blackSensitivity: Min. 130mm/5.12" (test coin: U.S 25)Detect objects: metal (iron nail, iron covering, aluminum rings, small aluminum product, coins, gold, bronze, silver)Detection mode: all metal, discriminationOperating frequency: 5KHzPower supply: 2 * 6F22 9V battery (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: adjustableDetection depth: 100-300mm/3.94-11.81inVolume: adjustableHeadphone jack: 3.5mmAdjustable height of detector: 780-1070mm/30.71-42.13inWaterproof search coil diameter: 205mm/8.07inApplication: testing metal foreign body of r-aw 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, detection of interpol search, checking metal foreign bodies in delivery and luggage.Operating temperature: -15-45/5-113Storage temperature: -20-60/-4-140Package size: 540 * 220 * 110mm/21.26 * 8.66 * 4.33inNote:1.