try to use my app,i'm sur you will like it!!!
Hand Metal Detector is a tool for detection,using the integrated magnetic sensor in the phone.
How to use hand metal detector:
*Open this app on your device.
*Move your mobile phone.
*Make sure you are not around your computer or electronic devices.
*Use hand metal detector to find a precious metals on beach.
Detect precious metals using your own phone anywhere anytime.