13. Notes
(1) Do not store or operate the meter in high temperature or
humidity.
(2) Remove the battery when the meter is to be stored for long
periods of time to avoid battery leakage.
(3) Wind blowing across the microphone increases the noise
measurement. Use the supplied windscreen to cover the
microphone when appliance.
(4) Keep microphone dry and avoid severe vibration.
(5) If the date and time automatically resume to default setting
after power the meter on, which indicates the battery power is low,
replace the meter's battery.