Welch Allyn Atlas Operator's Manual page 23

kPa – If the blood pressure is displayed in kPa on
the screen, the blood pressure readings will be in
kPa in the trend data and in the current readings of
the waveform printout.
Note: To set the blood pressure limits in kPa, you
will need to use the Select and Set buttons on
the right side of the monitor. The
alarm limits for systolic and diastolic will be
displayed in mmHg on the right side of the
monitor and in kPa on the screen.
and
HI LO
11