{TAIL ~ The output signal} of the transducer is amplified and then processed by a data processing unit to calculate {HEAD ~ the propane gas concentration} 
{ TAIL ~ The output signal } of the transducer is amplified and then processed by a data processing unit to calculate { HEAD ~ the propane gas concentration }
TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD