Product Description Professional Precision Positioning Pointer Metal Detector Gold Target Metal Detector Professional Precision Positioning Pointer Metal Detector Gold Miner Sensitive Tester Waterproof Package includes: 1 x Metal Detector. If the instrument beeps, please remove interfering factors around the machine, such as reinforced indoor floors, metal watches, gold and silver jewelry, shovels, spades, etc. It is recommended to test in an open outdoor area. The chassis of the machine is waterproof, but the main unit box is not waterproof. Do not use in thunderstorms and avoid moisture to the main unit box. 1. Rotate counterclockwise to open the battery cover and insert the 9V battery (alkaline batteries are recommended) into the battery compartment. Then tighten the battery cover and rotate clockwise. 2. Press the power switch to turn on the machine. 3. Select the desired metal alarm mode: vibration, sound, or vibration + sound. Operation method: Press the power switch once to select sound alarm. If metal is detected, the machine will sound. Press the power switch twice to select vibration alarm. If metal is detected, the machine will vibrate. Press the power switch three times to select vibration + sound alarm. If metal is detected, the machine will vibrate and sound. 4. Hold the probe to begin detection. When the machine is within 4 cm of the target, it will sound an alarm. 5. After use, press and hold the power switch for about 2 seconds to turn it off. Note: This machine is waterproof and can be used for underwater detection. Before water ingress testing, ensure the battery cover is closed and tightened. Product Parameters: Alarm Indication: Simultaneous sound and vibration; Sensitivity: Approximately 5 cm (based on a one-yuan coin); Power Supply: 9V battery (6F22ND) (not included); Dimensions: 23 x 3.8 x 2.2 cm; Detection Range: 0-4 cm.