Feature: 1. Using advanced microcircuit control processors, precise positioning and strong anti‑interference. 2. Adopts a 360‑degree tip point probe design, it can detect in the narrow gaps. 3. Vibration and blue light LED light alarm can prompt you the location of the metal in time. 4. Advanced signal processing technology, when the vibration frequency increases, the closer the detection target is. 5. Air compression sealing design is adopted, and the battery can be easily installed without the aid of any tools. 6. When the battery voltage is low, the sensor will remind you to replace the battery in time. 7. Uses seamless butt‑connected full intelligent switch technology, can control startup or shutdown without any adjustment actions. Specification: Condition: 100% Brand New Item Type: Metal Finder Material: ABS Detection Technology: Impulse Induction (PI) Detection Mode: All Metals Alarm Method: VibrationDetection Distance: Underwater 30m / 98.4ftBattery Attributes: 1 x 9V (6F22) Battery (Battery Not Included) Weight: Approx. 408g / 14.4oz Product Size: Length: Approx. 38cm / 15.0in Probe Diameter: Approx. 5cm / 2.0in . Package List: 1 x Metal Detector (Battery Not Included)1 x Manual Note: 1.Please allow 0-1 inch error due to manual measurement. Thanks for your understanding.2.Monitors are not calibrated same, item color displayed in photos may be showing slightly different from the real object. Please take the real one as standard.3.When detecting metal, the increase of the amount of pulse vibration indicates that the closer the detection target is. Of course, the strength of the pulse vibration depends on the size and distance of the metal shape. This is a high-precision electronic instrument. Please wipe it clean and keep it properly after use. The appearance of this product is sturdy and durable. Please do not use it as a crowbar or digging tool during use to avoid damage to the machine. When the instrument is not used frequently, please remove the battery to prevent possible leakage of the battery.