July 15, 2015

Metal Detector (v1.5) manual

Hello. I'm Android Boy.

This app is a tool to measure Magnetic Field Levels using a magnetic sensor (magnetometer). Many users are using it to find electrical wires and stud in the wall. First, watch the demonstration video of my fan.

Magnetic field level in nature is about 49μT (490mG). When any metal is near, the value will be increased. If this app does not work as you expect, please check the specifications and initialize your sensor.

 How to use it ???
  - There is no special usage. Just open the app, and move around. The number will be changed. That's it.
  - The magnetic sensor responds to electronic products (TV, PC) due to electromagnetic waves.

※ Introduction video

 Color grades of chart
① Green : Normal. Magnetic field level in nature within tolerance.

② Blue : Too low. The embedded sensor might be weakened because of phone heating and age. You should cool down your phone. Otherwise, replace the battery with new one.

③ Red : Too high. There is a metal object nearby. If the value is very high (+170μT), a vibration occurs. To stop it, click the stop icon. You can turn on alarm sound at the settings.

 If it does not work properly...
  - Several new devices have no compass sensor. Please check your specifications.
  - A leather case with a magnetic "snap" can make the sensor out of order.
  - Restarting or factory reset will be helpful for initializing it.
  - If not solved, visit the customer center of your phone (Samsung, LG, Sony...)

※ Settings
 - Alarm level : Select the threshold value of alert.
 - Beep sound : choose from 4 different sounds.

Q. This app does not work. Number is zero (0).
A. Some devices have no magnetic sensor. Please check the specifications of your device.

Q. Can it find gold or silver?
A. Maybe not. Pure gold and silver are classified as Non-ferrous without magnetic field.

Q. It does not react to coins.
A. Most coins are made of zinc, copper and aluminum.

Q. Can it find a hidden camera and ghost?
A. If they generate magnetic (electric) fields, this app can catch them. A lot of ghost hunters had downloaded this app, and they had experimented as a ghost detector.

Q. How far is the effective range?
A. It depends on the performance of your embedded sensor exactly. In my experience, its effective distance is at most 7-8 inches (15-20 cm).

 Pro version added features
 1) Compass full version integrated
 2) No ads
 Get it on Google Play

 What's new
 - v1.5 : Filter update
 - v1.4.12: Galaxy S9 support
 - v1.4.3 : Sound of/off icon
 - v1.4.2 : Overlay theme
 - v1.4.0 : Drawer update
 - v1.4 : Material design
 - v1.3 : Actionbar added
 - v1.2 : Tablet PCs support
 - v1.1 : Alarm sound added
 - v1.0 : Metal detector released (Aug, 2011)

If you have any idea to improve the app, feel free to contact me at androidboy1@gmail.com. Thank you.