DeeAWai Classic Metal Detector Powerful All Metal Metal Detector with 21cm Waterproof Search Coil Adjustable Lightweight DISC Metal Detectors for Kids Adults Beginners

How To Use It - 1, Set the operation mode to ALL METAL, DISC to counter clockwise end, SENS to high position. 2,Hold the search coil parallel with the ground about 1-5cm about the surface. 3, Sweep the search coil from side to side in an arc line of 7cm motion. 4,When the detector detects a buried target, it will beep(make a sound). Make a visual note of exact spot on the ground to mark it. 5,Stop search coil directly over this point. Move the search coil straight forward away from you and straight back towards you a couple of times. 6,Meanwhile, slowly rotate the DISC control clockwise away from ALL METAL until detector doesn't sound or becomes short tone. Then you can identify what kind of metal you detect according to the setting position of DISC. 7,A reference for you to know what kind of metal is rejected depending on the DISC setting. DISC SETTING METAL REJECTED Near 11:00 Iron Near 12:00 Nickel coin(5?), pull tab Near 13:00 Zinc coin(1? 87version) Near 15:00 Copper coin(1? 76version) Specification Power supply: 2 x 9V (6F22)(not included) Sensitivity:>16cm (for a US quarter) Current: 10mA(standby)/70MmA(max) Voltage:7.2-9.6v Frequency:5.0KHz Operation modes: All metal/ Disc Detector Diameter:21cm Audio: One Tone Detected indication: Mechanical Mode; Sound Mode Battery Condition Indicator: Yes Distinguish: Ferrous and non-ferrous Warranty: 2 years TIPS: 1, Never sweep the search coil when it's shaking. Raising the search coil while sweeping or at the end of a sweep while cause error readings. 2,Sweep too fast may miss potential targets. 3,It would be better if you sweep the search coil from side to side in an arc line of 3 inches motion and keep the search parallel with the ground.