Electromagnetic Spectrum & Emf

what is the electromagnetic spectrum????The answer in the description.

electromagnetic radiation for Android detects all available Electromagnetic Spectrum Emf Detector on your Android device, and vividly shows you how they work with amazing graphics. Electromagnetic Spectrum Box for Android also tells you which electromagnetic waves are supported by the hardware, and provides extremely useful electromagnetic waves tools that could be used in our daily life.

- Electromagnetic radiation

Electromagnetic radiation is applied to detect the light intensity of the environment, and then adjusts screen brightness and determines whether to turn off the keyboard light. Test the effect by putting your phone in dark place and retrieving it.

- Electromagnetic waves

Electromagnetic waves is applied to detect direction status of the device, i.e. auto rotate screen when device is rotated horizontally. It can also be used as measure equipment like Spirit Level.

- Electromagnetic field

Electromagnetic field measures the distance between two objects, usually the device screen and our hands/face etc. Test the effect by moving your hand forward and backward in front of the device in Sensor Box for Android.

- Electromagnetic Spectrum

Electromagnetic Spectrum provides information about your device temperature, thus you can take action when the temp is too low or high.

- Electromagnet

Electromagnet is applied to detect device directions, i.e. auto rotate screen when the device is rotated vertically. It is also widely used in game development.