Lifescan OneTouch Ultra Owner's Booklet page 61

MESSAGE WHAT IT MEANS
Error message that
indicates that the
meter has detected a
problem with the test
strip. Possible
causes are test strip
damage or an
incompletely filled
confirmation window.
The É symbol
appears on the
display with the unit
of measure. The
power is getting low.
You can complete
about 50 more tests
from the time this
symbol first appears.
É
The symbol
appears on the
display by itself. The
power is too low to
perform a test.
55
ACTION
Repeat the test with
a new test strip.
Refer to pages 30-31
for information on
sample application.
Test results will still
be accurate, but
replace the battery
as soon as possible.
Replace the battery
at once. The meter
will not operate.