This is another solution which enables measuring and detecting {TAIL ~ several different gases} by {HEAD ~ a single measurement} 
This is another solution which enables measuring and detecting { TAIL ~ several different gases } by { HEAD ~ a single measurement }
OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD