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Placement for Maximum Accuracy

AcuRite products are sensitive to surrounding environmental conditions. Proper placement 

of both the display unit and the sensor are critical to the accuracy and performance of 

this product.

DO NOT HANG IN DIRECT SUNLIGHT!

For the most accurate temperature readings choose a location that will not be exposed 

to direct sunlight or other direct heat sources.

LOCATE AWAY FROM HEAT SOURCES

Position clock away from heaters, air conditioners, chimneys, exhaust vents, asphalt and 

concrete (surfaces that radiate heat).

LOCATE AWAY FROM HUMIDITY SOURCES

Avoid installing the clock near pools, spas, or other bodies of water. Water sources may 

impact humidity accuracy.

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Thermometer & Hygrometer Calibration  

The thermometer and hygrometer instruments have been calibrated at the factory and 

should not need adjustment. However, as with all instruments that are placed in a new 

location, you should always allow a period of at least 3 hours for stabilization before 

determining whether it is reading accurately.
Should you determine that an adjustment of the thermometer or hygrometer is needed, this 

can be achieved by gently rotating the back of the thermometer or hygrometer movement 

on the back of the unit, as illustrated, slowly in either direction until the correct reading is 

shown on the dial.

ROTATE TO CAL/-

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