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Metal detector is a free app which detect the presence of metal by measuring electromagnetic field value. This work with device built-in magnetic sensor or magnetometer. The sensor allow you to detect objects generating magnetic fields, the greater the value of magnetic fields the stronger will be the metal. When any metal object like steel or iron is near, EMF reading will increase with a beef sound and vibration. Magnetic fields are generate by electronic devices such as phones, wiretaps, wires, sharp objects, metal screws, coins etc.
EMF meter or metal detector app will allow you to detect metal objects with your phone, it is fun and super easy to use. Feel yourself detective and surprise your friends.
Metal detector app allow you to detect metal because all metals generate magnetic field which strength can be measured by using EMF Meter or EMF Detector. The magnetic field level (EMF) value in nature is 49 microteslas (μT) or 490 milli-gauss (mg) and 1 μT = 10 mg.
The hand held metal detecting app will detect metal by moving the device near to metal because due to increase of magnetic field value (EMF).

Key features :
1.	Provide visual and audio feedback
2.	Detect the strength of Magnetic force fields on all three axis’s (x,y,z)
3.	Turn OFF/ON Audio beep sounds
4.	Changing Beep sounds according to your choice
5.	Turn OFF/ON Vibration
6.	Provide a graphical view of magnetometer
7.	Nice user interface
8.	Easy to use
9.	If your phone does not have a magnetic sensor then this app will inform you.

Hand held metal detector or metal finder is perfect for construction workers. The metal detector app is used to find where in the walls are hidden wires and to determine the location of metal stud. It is good stud detector because stud is also metal and it generate magnetic fields. Metel detector or metal finder give a graphical representation of magnetic field.
You can also use it as a stud detector, the stud detector app work in a similar fashion they also detect magnetic field that are generated by stud by using magnetic sensor. Some people may also use it as a body scanner for entertainment purpose only. Real metal detector with sound depend on device magnetic sensor and it is not a prank app but some people may use it for entertainment purpose.
Real metal detector with sound is very easy to use, from setting you can turn off/on vibration and sound and you can also change beep sound, there is 5+ beep sounds in the app.

FAQ:

1. Can EMF detector accurately find all metals? 
The accuracy totally depend on your device magnetic sensor (magnetometer), the accuracy varies from device to device magnetometer.

2. What does if my device doesn’t support magnetic sensor or magnetometer? 
If your device doesn’t support magnetic sensor or magnetometer then you cannot use the metal detector app.

3. Can I use EMF Meter as gold detector or detect silver or copper coins? 
No you cannot use EMF detector or EMF Meter (metal finder) as a gold detector or detect silver and copper coins because these are classified as non-ferrous metal that has no magnetic field. So the metal finder work well only on metal and not on a non-ferrous metal.

Precautions: 
-	Not every smartphone has magnetic sensor. If your device does not support magnetic sensor then EMF detector or metal detecting app will not work on your device and we are sorry for this inconvenience.
-	Accuracy totally depend on your device built-in magnetic sensor.
-	Metal detecting app will not work with non-ferrous metal like gold, silver and aluminum etc, as they have no magnetic field.
-	Radio waves like laptop, computer, TV, radio signal can effect magnetic sensor. While running metal detecting or EMF detector then avoid all these places.
-	If your phone sensor does not detect any metal accurately then in this case developer is not responsible for this.

Metal detector - EMF Meter

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