◆. Has 15 LED signal indicator lights, showing the size of the metallic objects from green to yellow to red colors, and more detail by number of lights. ◆. Adjust button can automatically eliminate interference. ◆. Automatic re-tuning and battery check. ◆. Low power consumption, can work for 40 hours continuously. ◆. Detection distance: Detect a pin at 35mm distance. ◆. Have charge function, charge time about 4-6 hours. ◆. Rechargeable battery optional. |
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