1Vibration and light communications - when the target is located at pi-iking750 the signal flashes with a vibration pulse and a bright blue light. 2Pulse induction (PI) - this technique allows hunting in salt water or in any type of soil at the beach, including black sand. 3Detection depth stability - new advanced circuits maintain detection distances in the entire battery life unit. 4Target drift - the increased pulse at the frequency of vibration at the probe tip is close to pinpoint the target. 5Automatic adjustment - the state of the art microprocessor control design does not require any form of adjustment. Description: For Pi-iking 750 communicates with vibration and light pulses within the pinpointer handheld metal detector in this field, including the technology of pulse induction (PI), which is waterproof to a depth of 100 feet. The self-calibrated microprocessor control circuit does not require adjustment. The unique seal design allows detection of any environment including grass, mud, dust, sand, black sand, or even fresh water or sea water. Application: Public security inspection, police detection, search diving, professional archaeology, decoration see the real chapter line. Features: 1. Vibration and light communications - when the target is located at pi-iking750 the signal flashes with a vibration pulse and a bright blue light. 2. Pulse induction (PI) - this technique allows hunting in salt water or in any type of soil at the beach, including black sand. 3. Detection depth stability - new advanced circuits maintain detection distances in the entire battery life unit. 4. Target drift - the increased pulse at the frequency of vibration at the probe tip is close to pinpoint the target. 5. Automatic adjustment - the state of the art microprocessor control design does not require any form of adjustment. 6. Tilt on/off - For PI-iking750 on/off system eliminates fragile button switches and requires a simple tilt. 7. Waterproof - unique seal design can be used in almost any environment, including fresh or salt water up to 100 feet deep. This makes it an ideal tool for divers and beaches. 8. Low power indicator - the built-in low battery sensor reminds you that when the battery power is low, it needs to be replaced. 9. The battery is easy to install - the stand 9 volt battery quickly intervenes to change without a tool. Simply turn the knob and pull out the compression seal to enter the battery compartment. 10. Compact design - due to its compact 4-inch coil and overall small size, for PI-iking750 is easy to carry and can be used for almost any small suitcase or backpack travel. 11. Structurally sound - the pinpointer pointer indicates a firm seal structure and a solid base for stainless steel hardware. 12. Band and wrist band - includes a band attached to any common belt clip and band to increase safety. Battery Installation: 1. Turn the knob counterclockwise to open the battery box seal 2. Insert a 9V battery 3. Turn the knob clockwise until tightened by hand to ensure the waterproof seal. Specifications: Condition: 100% Material: ABS Color: Yellow Battery: 1 * 9V (NOT INCLUDED) Size: Approx. 42 * 11 * 4.5 cm / 16.5 * 4.3 * 1.7 in Weight: Approx.