Alternatively {TAIL ~ the sensor} includes a bar code reader that reads a code on, for example, the spool of {HEAD ~ wire}, an analog proximity detector, a plurality of proximity detectors, and a displacement sensor 
Alternatively { TAIL ~ the sensor } includes a bar code reader that reads a code on , for example , the spool of { HEAD ~ wire } , an analog proximity detector , a plurality of proximity detectors , and a displacement sensor
OTH TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH