Product Benefits :

1. Has the switch function sound to alarm.
2. Easy to operate,convenient to carry,and has high sensitivity.
3. Adopts imported digital chip,has stable capability and durable.
4. Can exactly recognize the location of the broken needle.
5. Can last long time to work,and won't be warm.
6. It will continuously sound when the voltage is lower than 6V.then need to replace the battery.
7. Can be used to detect the ferromagnetism impurites inclothing and fittings with hardware buttons.
8. Can detect the ferromagnetism impurities in medicine,food,industrial chemicals.
9. Can inspect the nails,steel bars in wood,wall,tables and so on.
10. Can inspect whether there is harmful iron dust inside when someone is injured.
Also can be used in fronitier inspection, the government worker can rapidly search the hidden weapon of the crimninals.