chargeable metal detector
Specification: Metal Detector | 1, battery 9V reduce to around 7V,but detection range do not change | 2, it can save electricity, and continuously working reach up to more than 40 hours | 3, when the battery is almostly used up, will make a alarm voice automatically | 4, Can use external power for charging | 5, have acousto-optic and vibration function, and can be mutual changing-over | 6, the battery can be charged | 7, size: 410*85*45mm |
|