For the temperature warning device, the enclosure is made of {HEAD ~ either a transparent or opaque material} with {TAIL ~ a transparent window} 
with
For the temperature warning device , the enclosure is made of { HEAD ~ either a transparent or opaque material } with { TAIL ~ a transparent window }
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL