Sper Scientific 850027 Mini Environmental Quality Meter - Manual (Page 13)

13
page 8, display will show
bAr text), now the meter is
ready for actual air pressure
measurement (absolute air
pressure value).
Note...
Actual air pressure in the
measurement location changes
in response to two things:
changes in altitude and changes
in atmosphere.
2. Sea level barometric pressure
value measurement. Press
HOLD once, the Display will
show the Hold indicator then
press REC continuously until
the bottom left of the display
shows “m” or “ft”.
m = meter ft = feet