Detection range
Bighead needle: 30-60 mm
Six-inch Dagger: 160-180 mm
20 mm diameter steel ball: 120 mm
Money coins: 75-100 mm
technical parameter
Shape size: 410 mm long, 85 mm wide, 45 mm thick
Power supply: standard 6F229V battery or rechargeable battery (optional)
Frequency: about 25 Hz
Voltage: 9V (6F22)
Net weight: 400g (battery free)
Use temperature: - 15 ~55 C
