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them off the reach of children.
2.5 Precautions
The sensors and transmitters of the CGMS should be matched. The products of
different generations cannot be connected and cannot work. Make sure that the
system uses the correct software version.
Before opening the sensor package, wash your hands with soap and water and
dry them.
Before inserting the sensor, clean the skin with alcohol wipes and let it dry up.
This helps prevent infection. Do not insert the sensor until the skin is dry so that
the tape on the sensor base can be better attached to the skin.
Change the insertion site each time. Using the same insertion site too often may
not allow the skin to heal, and may cause scars or skin allergies.
Do not insert sensors in areas that may be bent, squeezed, tattooed, hairy or
allergic. These sites are not ideal for measuring blood glucose. Inserting sensors
in these places may affect the performance, missing low/high blood glucose
values.
Do not insert sensors within 5 cm of insulin injection and placement of insulin
pump. Insulin may affect the performance of the sensor, missing low/high blood
glucose levels.
To calibrate, enter the exact blood glucose value measured by the glucometer
within 3minutes. Inaccurate input or input exceeding 3minutes may affect the
performance of the sensor and result in missing low/high blood glucose values.
Rapid changes in blood glucose level may not be displayed in time, such as
during exercise or after meals. There is always a time lag between glucose level
in the blood and glucose level in the interstitial fluid, the lag time is different
from person to person.
When properly worn, the transmitter and App have a transmission range of 2 m
without obstruction. Wireless connection in the water is not very well, so the
range of connections in places like swimming pools, bathtubs and waterbeds
will be reduced. If the distance between the transmitter and App is more than 2
m or if the distance between them is blocked, they may not be connected or the
connection distance may be shorter. You may miss the low/high blood glucose
level notifications Yet all the data will still be stored in your transmitter, so your
App is able to display all the data when there is good communication again.
The transmitter can be reused up to 3 years in its lifetime, so do not discard it.
In rare cases, the sensor may give inaccurate glucose readings. If the glucose
reading is believed to be incorrect or inconsistent with your symptoms, perform
a fingerstick glucose test and check to ensure that the sensor is not loose.
Intense exercise may cause the sensor to be detached or loosened. If the Sensor
is loose, you may not get a reading or the reading may not be reliable and may
not match how you feel. Follow instructions on selecting the appropriate site for
