| http://www.w3.org/ns/prov#value | - The transmitter of claim 6 wherein said sensor is a pressure sensor, comprising a chamber having a deflecting diaphragm therein, said passageway in the first transmitter body comprising the sensor being fluidly coupled to said chamber, and wherein said isolator diaphragm in the second transmitter body defines a second chamber and the passageway in the second transmitter body leads from said second
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