SensorView is a little utility to view the sensor values from your Android driven smartphone.
Most smartphones have sensors for acceleration, magnetic field and light.
E.g. with the magnetic sensor and SensorView you can detect iron and other magenetic materials and you can also measure weak magnetic fields.
!!! DONT TRY TO MEASURE STRONG FIELDS - IT COULD DAMAGE YOUR SMARTPHONE !!!
With the orientation sensor you can find the compass points.
Values are displayed as numbers and graphically in a bargraph. With clicking in the bargraph you can set a zoom factor for the graphical display.