La Crosse Technology WS-7215U-IT - Manual (Page 21)

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Problem: Temperatures do not match if units are placed next to each other.
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). Also, 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.
MAINTENANCE AND CARE INSTRUCTIONS
• Extreme temperatures, vibration, and shock should be avoided to prevent
damage to the units.
• Clean displays and units with a soft, damp cloth. Do not use solvents or
scouring agents; they may mark the displays and casings.
• Do not submerge in water.
• Immediately remove all low powered batteries to avoid leakage and
damage.
• Opening the casings invalidates the warranty. Do not try to repair the unit.
Contact La Crosse Technology for repairs.
SPECIFICATIONS
Temperature Measuring Range:
Indoor:
14.1
°F to 139.8°F with 0.2°F resolution.
(-9.9
°C to 59.9°C with 0.1°C resolution).
“OFL” displayed if outside this range.
Outdoor: -39.8
°F to 139.8°F with 0.2°F resolution.
(-39.9
°C to 59.9°C with 0.1°C resolution).
“OFL” displayed if outside this range.
Humidity Measuring Range
Indoor relative humidity
1% to 99% with 1% resolution. ( Display “- -“ if