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Functional
parameters
Temperature
unit: °C/°F
At the main interface, press [▼] key twice to
enter the functional parameter mode, and press
[ENTER] key to enter the change state. Press
[SHIFT] key six times to select the items to be
changed in “Temp Unit”. Press [▲] key or [▼]
key to select “
℃
” or “
℉
”. Press [ENTER] key
to confirm. Press [BACK] key to return to the
main interface.
Restore
factory-set
value
At the main interface, press [▼] key twice to
enter the functional parameter mode, and press
[ENTER] key to enter the change state. Press
[SHIFT] key seven times to select the items to
be changed in “Rest”. Press [▲] key or [▼] key
to select “Yes”. Press [ENTER] key to confirm.
The screen displays “RestFactory Data…”. After
completion, press [BACK] key to return to the
main interface. (Users may also use the method
to delete data record).
Measurement
The instrument should be placed in an open space before
measurement to avoid blocking of the sensors. Press the power
key to switch on. Press [RUN] key at the main interface and the
instrument will enter the sampling state of 50 seconds. At the
moment, do not operate the instrument first. After completion of
sampling, the measurement result will be displayed on the display
screen finally. Users may enter “Setting" interface
to set the particle unit so as to realize the switching of measurement
mode (cal mode 1/weighing mode).
Note: don’t carry out measurement at the time of charging in order
to achieve a more accurate measurement result.
New air quality standard
Schematic diagram of
concentration grade
Air quality level
Excellent
Good
Slight pollution
Moderate pollution
Heavy pollution
Serious pollution
PM2.5 average standard
value in 24 hours.
Install/Replace Battery:
When using this unit for the first time, please install a 9V battery
which supplied by the factory. This meter has the battery power
indication function, when it displays or , please replace the
battery in time