Automation System
A smart solid-state sensor is:

one that has two or three substrates
None of these
All of these
not available today
one that integrates both logic and a solid-state sensor into one unit.

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Automation System
An aneroid barometer

can be used to measure gas or liquid flow rates
measures pressure by sensing deflection of an evacuated chambers.
None of these
is very unreliable
can measure only atmospheric pressure

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