Feature: 1. COPPER WIRE INDUCTION RING: Fast detection induction, simple operation, built in induction coil(if there are metal substances) is detected within the detection range, will immediately alarm 2. WIDE RANGE OF APPLICATIONS: Metal detectors can be used to search for coins, relics, jewelry, gold and silver jewelry. In addition, widely used in government organs, airports, stations, examination rooms and other security checkpoints 3. SIMPLE OPERATION: Ready to use, sensitive and fast induction, the key is set on the side, and only need to push when using 4. SOUND AND LIGHT ALARM: When metal is detected, detector will emit sound alarm and flash red indicator light, which can detect black metal and non ferrous metal 5. ROTATING PROBE: Folding probe can be rotated 180°, suitable for a variety of scenarios, simple operation, accurate positioning Specification: Item Type: Metal Detector Battery: 1 x 6F22 750mAh alkaline dry battery Current Consumption: Less than 3mAh Operating Temperature: -10℃~+50℃ Probe Head Diameter: Approx. 140mm / 5.51in Detection Mode: Beep alarm, LED indicator flashing Features: Can detect ferrous and non ferrous metals Detection Distance: Tack: Approx. 20 ~ 40mm / 0.79 ~ 1.57in Diameter Nail: Approx. 20 ~ 80mm / 0.79 ~ 3.15in Paper Clip: Approx. 30 ~ 80mm / 1.18 ~ 3.15in Recording Pen: Approx. 80 ~ 140mm / 3.15 ~ 5.51in Mobile Phone: Approx. 100 ~ 210mm / 3.94 ~ 8.27in Gun: Approx. 110 ~ 220mm / 4.33 ~ 8.66in. Package List: 1 x Metal Detector1 x Battery1 x User Manual