Acu-Rite 00891A ユーザーズマニュアル

• To ensure accurate temperature measurement, place units out of direct 

sunlight and away from heat sources or vents.

• The wired temperature probe is not waterproof and is not intended for 

permanent submersion in liquids. Submersion in liquid for more than 30 

seconds may result in complete failure of the probe.

High and low values are recorded for display (indoor) and probe (outdoor) 

temperature and humidity. High and low records reflect the minimum and 

maximum temperature and humidity record in the last 24 hours. High and low 

records automatically reset at 12:00am. 
To view the HIGH and LOW indoor (display) temperature records, press and 

release the “TEMP MAX/MIN” button. The “MAX” and “MIN” icons appear 

on the display next to the high and low records.
To view the HIGH and LOW outdoor (probe) temperature record, press and 

release the “TEMP MAX/MIN” button twice. The “MAX” and “MIN” icons 

appear on the display next to the high and low records.
To view the HIGH indoor (display) humidity record, press and release the 

“HUMIDITY MAX/MIN” button. The “MAX” icon appears on the display next 

to the high record.
To view the LOW indoor (display) humidity record, press and release the 

“HUMIDITY MAX/MIN” button twice. The “MIN” icon appears on the display 

next to the low record.
To reset the HIGH and LOW records, press the “CLEAR” button while viewing 

the high and low records you wish to clear. Dashes will display to confirm the 

values have been cleared.

•  Make sure both the display unit and sensor are 

placed out of direct sunlight and away from any heat 

sources or vents.

•  Check that the batteries are installed correctly. 

Batteries may need to be replaced.

Display: 32°F to 122°F; 0°C to 50°C

Probe: -58°F to 158°F; -50°C to 70°C

Display: 16% – 98% RH (relative humidity)

1 x AAA alkaline battery