Feature: 1. HIGH PERFORMANCE: This handheld metal detector has high sensitivity and stability and can identify different types of metals, with high efficiency and fast detection. 2. EASY OPERATION: Utilize microelectronic processor to control chip unit calibration and instrument self checking system, which can scan and test easily and quickly. 3. ACCURATE DETECTION: Has a long range search system and precise location detection system that can identify specific types of metals through frequency regulators. 4. DETECTABLE OBJECT: Can detect gold, silver, copper, conventional precious metals and gemstones, etc., commonly used in military, security inspection and prospecting, etc. 5. WIDE APPLICATION: With a search range of up to 1200 meters and a detection depth of up to 30 meters, this handheld metal scanner has a wide range of applications. Specification: Item Type: Metal Detector Material: ABS, Sponge Coating Transmitter: Built in rechargeable battery (NiCr) 2000mAh Receiver: Built in rechargeable battery (NiCr) 2000mAh Uses: Used for military, security inspection, archaeological treasure exploration, prospecting, etc. Detected Objects: gold, silver, copper, conventional precious metals (palladium, platinum), gemstones (diamond, emerald, carbuncle, etc.) Basic Parameters: Search Range: Maximum Approx. 1200meter / 3937ft Detection Depth: Maximum Approx. 30meter / 98.4ft Transmission Frequency: 5.6-6KHz Signal Frequency: 310-435MHz. Package List: 1 x Transmitter1 x Receiver4 x Rubber Pads1 x Signal Bar (Long)1 x Signal Bar (Short)1 x Power Adapter1 x Suitcase1 x User Manual Note: The product needs to be tested or used in an open outdoor place to avoid signal interference affecting the test effect or test distance. The most common method of the machine is the box method, which is to search for detection on four sides around an area. When looking for metal around an area, if the metal is in the area (in the area the detector is looking for), the probe of the detector will point in the direction of the target on each side of the way (when the pointer points every time, pay attention to return to the starting position, repeat 2‑3 times, and confirm that the direction the pointer points to is true), so as to determine the location of the metal. 1. Where mistakes are easy to make, the customer immediately judged the metal position when he found that the pointer had a direction (there was a direction, which needs to be confirmed for 2‑3 times). 2. If there are repeatedly confirmed pointers when walking on the four sides. Only then can we judge the location of the target, which is the area pointed by the pointer. (Sometimes most customers make two sides, and the pointer also points. If the other two sides are not tested, the omission will also lead to incorrect detection results of the detector. It is important to judge if the four sides are completely tested, and all have points.).