Android Question Values of proximity sensor

[hookshy]

Is the proximity sensor an on off state ! ..or the value is a propotional to the measured distance.
When proximity is on a value 0 is triggered.
Is the max value equal for all devices ?

Sub ps_SensorChanged (Values() As Float)
Log(Values(0))
End Sub

 

[Erel]

It can change between different devices. Though in the devices I tested it there were only two values (don't remember whether the maximum value was constant or not).