super scanner product description with super high sensitivity, it can detect extremely tiny metal articlesthe adjusting button can eliminate interference.the auto-testing will begin when it is turned on. It needn't adjustment.with a large scan area it can rapidly and accurately complete the detection.working frequency: 95 khzadjusting mode: automaticindicator: the sound gradually rises.alarm modes: simultaneous sound and light alarm9v rechargable battery & charger
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Hari Nagar, Delhi