{HEAD ~ The sensing element} or sensor can be calibrated for {TAIL ~ a specific user} or a group of users 
calibrated for
{ HEAD ~ The sensing element } or sensor can be calibrated for { TAIL ~ a specific user } or a group of users
HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH REL REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH