DA50 sensor wire question
 

try to understand how the sensor on DA50 works and have the following questions:
[ul][*] What type of sensor does DA50 use? Is it Hall effect type?[*] What kind of outputs are there from the three wires? Voltages? If so, what should the value? [*] Why three wires (brown, red and orange)? Which wire is for what?
[/ul]

Thanks -qc

PS. here is a picture of the sensor and the male wire connector.