Passive Infrared Sensors (PIR) used in a non-climate controlled environment should
A.
reduce the detected object temperature in relation to the background temperature.
B.
increase the detected object temperature in relation to the background temperature.
C.
automatically compensate for variance in background temperature.
D.
detect objects of a specific temperature independent of the background temperature.
This question is unclear. What is a “non-climate controlled environment”? And what is meant by: the PIR automatically “compensates” for variance blablabla… compensates!? Who writes these questions!? Why are there no references?
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