{TAIL ~ The other end} of {HEAD ~ the pin} carries a permanent magnet in axially alignment with the sensor  
{ TAIL ~ The other end } of { HEAD ~ the pin } carries a permanent magnet in axially alignment with the sensor
TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH