Dexcom G4 Professional User Manual page 59

5
PRECAUTION
The transmission range from the transmitter to the
receiver is up to 20 feet without obstruction. Wireless
communication does not work well through water so the
range is much less if you are in a pool, bathtub, or on a
water bed, etc. Types of obstruction differ and have not
been tested. If your transmitter and receiver are farther
than 20 feet apart or are separated by an obstruction,
they might not communicate or the communication
distance may be shorter and you might miss a low or
high blood glucose value.
Press the SELECT,
This antenna symbol
communicating.
Antenna symbol appears
in upper left of trend
graph in real-time mode
This out of range symbol
communicating. See Chapter 13 for troubleshooting instructions if the
out of range symbol appears.
58 | Dexcom G4 PLATINUM Professional Continuous Glucose Monitoring System
LEFT or RIGHT button to see the trend graph.
shows that the transmitter and receiver are
shows the transmitter and receiver are not
Antenna symbol appears
in upper left of trend
graph in blinded mode