Battery: 9V battery (can afford 80 hours of normal operation)
Working frequency: 95kHz
Indicator: sound gradually rises
With super high sensitivity, can detect extremely tiny metal articles
Adjusting button can eliminate interference
Auto-testing will begin when turned on
With large scan area can rapidly and accurately complete detection
When low voltage, yellow light will be on
Green light: ready
Red light: alarm
Adjusting mode: automatic
Dimensions: 42 x 4.13 x 8.3cm
Weight: 0.5kg
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