1.Product name:metal detector 2.Material: ABS 3.Weight: 1.37kg 4.Color: Black 5.Size: 550 * 355 * 153mm 6.Working voltage: 7.1 ~ 9.6V 7.Current: minimum 30mA, maximum 60mA 8.Signal frequency: 7.5KHz +/- 1KHz 9.Sensitivity: minimum 13cm 10. Working environment: -20 ℃ ～ 60 ℃ 11.Water spray height: 30-60cm 12. Product Features: 1) Strong discrimination and high accuracy