This simple application supports the real time visualization of all sensor data of your phone in form of a line graph. It outputs the data just as they come in provided by Google's APIs. A legend describes what kind of data the values are.
In the case of an accelerometer, the read out data will be acceleration x-axis, y-axis and z-axis (in this order) and the unit m/s^2. The legend's text is retrieved of an open source library called Sensor Value Legend.
To get more information about the description and units of the sensor data check out: https://developer.android.com/reference/android/hardware/SensorEvent.html Be aware that the app doesn't feature the recording of sensor data.
Get it on Google Play: https://play.google.com/store/apps/details?id=com.michaeltroger.sensorvisualization