a housing formed from a computer card, said {HEAD ~ housing} being shaped as {TAIL ~ a rectangular prism}, said housing having a uniform thickness of about 3.3 mm and generally sized so as to be holdable in a persons hand during data collection 
a housing formed from a computer card , said { HEAD ~ housing } being shaped as { TAIL ~ a rectangular prism } , said housing having a uniform thickness of about 3.3 mm and generally sized so as to be holdable in a persons hand during data collection
OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD OTH REL REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH