Lifescan SureStep blood glucose monitoring system Owner's Booklet page 69

ERROR POSSIBLE CAUSE
2. The test strip has
been altered, exposed
to air, or has passed
its expiration date.
1. The test strip was
removed or partially
removed before the
result was displayed,
or
2. The meter contact
points are dirty.
Note: If more than two minutes have passed since you applied
blood to the test strip, repeat the test with a new test strip.
WHAT TO DO
2. Check the expiration date on
your test strip package. Do not
store test strips outside of the
original bottle. Do not alter test
strips.
1. Do not remove the test strip
until the meter displays the
result.
2. Clean meter contact points.
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