Vaisala PTU300 - Manual (Page 106)

User's Guide _______________________________________________________________________
104 __________________________________________________________________ M210796EN-G
UNIT
Use this command to select metric or non-metric output units. With the
command you can also set P units.
UNIT [x] [y]
where
x = M or N or P
y = Pressure Units (see Table 6 on page 22)
where
M = Metric units
N = Non-metric units
P = Pressure
Examples of changing the units:
>unit n
Output units : non metric
>unit m
Output units : metric
>unit p torr
P units : torr
>unit p hpa
P units : hPa
>
NOTE This command changes both the serial output and display units to either
metric or non-metric units. When you want to output both metric and
non-metric units simultaneously on the display, select the display units
later by using the display/keypad.