

Proximity
To measure how close an object is to the device’s screen

Accelerometer
To measure the rate of change of velocity of the device along all the three axes which includes gravity

Light
To measure the ambience of light or brightness

Magnetic
To measure the magnetic field along all the three axes of the device

Gyroscope
For the rate of rotation along all the three axes of the device

Orientation
For the orientation of the device with respect to earth

Camera
You can check the availability of both the front and back cameras.

Microphone
Detects the sound around the device

Touch
Detects the touch made on a device screen and also represents the maximum # of touches it can detect.