From the sellers bumf...
-Hall proximity model:NJK-5002C .
-Detected objects: Magnet.
-Detection range: 1mm-10mm.
-Proximity output current: 20mA(For the sensor).
-Operating temperature: -10 to 60°C.
-Sensor wiring:brown(Power+),blue(Power-),black(signal).
-Sensor size: 37 x 12 x 10mm.
So, needs a magnet....
Try it, what have you to lose? Either works or not....
