A vehicle tracking system includes a wheel unit containing circuitry capable of sensing various types of {HEAD ~ conditions}, such as specific electromagnetic and magnetic signals indicative of {TAIL ~ particular wheel locations} 
A vehicle tracking system includes a wheel unit containing circuitry capable of sensing various types of { HEAD ~ conditions } , such as specific electromagnetic and magnetic signals indicative of { TAIL ~ particular wheel locations }
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 TAIL TAIL TAIL TAIL TAIL TAIL TAIL