Sper Scientific 850027 Mini Environmental Quality Meter - Manual (Page 15)

15
Altitude measurement
Note...
The higher the location altitude,
in comparison to sea level, the
lower the barometric pressure.
To measure your altitude value
precisely:
a. Method 1: Set the altitude
value if your start location
is known.
b. Method 2: Reset the sea level
barometric pressure value first.
Method 1:
Power on the meter and under
the altitude function, press HOLD
once, the display will show the
Hold indicator. Press REC once,
the bottom of the display will show
the m (or Ft) indicator flashing.