Display What It May Mean What To Do
Sensor
Already in
Use
The Sensor was
started by another
device.
Your Reader can only be used
with a Sensor that it started.
Check your glucose with the
device that started it. Or, apply
and start a new Sensor.
Check Sensor The Sensor tip may
not be under your
skin.
Try to start your Sensor again. If
Reader displays “Check Sensor”
again, your Sensor was not
applied properly. Apply and
start a new Sensor.
Replace
Sensor
The System has
detected a problem
with your Sensor.
Apply and start a new Sensor.
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