The humidity sensor associated with the monitoring of humidity levels in the selected gas component may then be omitted and {HEAD ~ a value} of {TAIL ~ the predetermined humidity level} provided directly 
of
The humidity sensor associated with the monitoring of humidity levels in the selected gas component may then be omitted and { HEAD ~ a value } of { TAIL ~ the predetermined humidity level } provided directly
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH