30m Deep Metal Detector Folding Screen Gold Finder Metal Scanner Device Search Range 1000m GR9000 100‑240V US Plug Item Type: Metal Detector Material: Aluminum, ABS Gross Weight: 1632g / 57.6oz Working Status: 1. When fully charged, turn on the host detector, turn on the sensing switch, press the button corresponding to the item to be detected by the sensor, and adjust the adjustment depth and range search function of the host detector to detect; 2. When the hand held is stable and there is no other interference, the object to be detected will swing left and right, and the swing range will increase when the object to be detected is large; Search System: microcomputer CPU control and reflection conductivity Product Size: Host: Approx.28.5 x 25.5 x 13.5cm / 11.2 x 10.0 x 5.3in, Receiver: Approx.11.8 x 8cm / 4.6 x 3.1in Range: 1000m Depth: 30m Host Battery (shipped with built in battery): NiMH rechargeable battery, AAA, 1600MAH Transmitter Accessory Battery (shipped with built in battery): NiMH rechargeable battery, AAA, 1200MAH Transmission Frequency: 5.6-6KHz Signal Frequency: 470MHz Detection Type: gold, silver, copper, precious stone Charging Time: 10-12 hours Purpose: metal search