The smaller sensor tip and thermistor have {HEAD ~ less mass} that must change {TAIL ~ temperature} for the sensor to respond 
change
The smaller sensor tip and thermistor have { HEAD ~ less mass } that must change { TAIL ~ temperature } for the sensor to respond
OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH REL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH