Metal detectors
When the product finds a metal object, the red warning lights on the front and rear sides of the product faces light up Low battery consumption: When the product is in standby mode, the current is 0A; In working mode, the current is 1 mA High precision and sensitivity: (About 0.1 kg or smaller) Battery voltage indicator: The system will keep the current detection, when the voltage is less than adequate, the red warning light will be on, indicating that the battery should now be replaced Enable the alarm version in different tones according to the sizes Different from metal