it can be recharged .It needs 4-6 hours fot charging (standard 9V battery ,the charger and rechargeable battery are ordered additional )
The alrms terms is sound and light alarm simultaneously.You can choose the operate terms optionally
When the low senstiivity on-off is pressed ,the metal detector will only alarm when is finds big metal object Li bettery ,USB change cable (for option)
Battery saving function:Automatically power OFF after one minute if no use (for option)
Security Detectintg - Prevent taking contraband ,such as - Knife ,gun and so on
Factory - Prevent the loss of valued objects
Education area:Prevent taking cheat -tool ,such as :telephone ,electronic dictionary ,and so on.
Application :
Exhibition
Bank
Electronic Factoty
Prison
Government office
Hotel
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