TESTO 557s - Units

8 Using the product
41
8.4.5 Units

The Settings menu is activated.
1
Press [▲] / [▼] to select [Units] and
press [Menu/Enter] to confirm.
-
Menu properties are displayed.
Adjustable units
Measurement
parameter
Unit Description
Temperature
°C, °F
Set unit for temperature.
Pressure
psi, kPa, MPa,
bar
Set unit for pressure.
Pressure mode
Prel
,
Pabs
Depending on the chosen unit for
pressure:
Change between absolute and relative
pressure displays.
Absolute
pressure
bar (Pabs)
Set the current absolute pressure
(current air pressure values for your
region can be obtained, for example,
from the local weather service or on the
Internet).
Vacuum
pressure
Micron, mbar,
Torr, mTorr
inH2O, in Hg,
hPa, Pa