13
Solution:
Each temperature sensor is
manufactured to be accurate to within 1
degree plus or minus and under normal
conditions; so two sensors could be as much
as 2 degrees different. However, the
difference can be exaggerated further
because the sensors are designed for
different working environments. The indoor
sensor is less responsive to ambient air
currents because of the shielding effect of
the display's case. In addition, the case can
act as a heat sink to absorb and store heat
from external sources (i.e. handling of the
case or radiant heat). In addition, the much
greater range of the outdoor temperature
sensor requires a different calibration curve
than the indoor range. Error is usually
greater at the extreme ends of a range,
making it harder to compare different ranges
with different curves. Under non-laboratory
conditions, it is difficult to compensate for
the above factors and obtain an accurate
comparison.
