User`s guide

Dexcom G4 User’s Guide | 15
Plunger
Applicator barrel
(contains small
introducer needle
and sensor)
Transmitter Latch
Safety lock
Collar
Sensor pod
Release Tab
1.1 SENSOR OVERVIEW
The sensor is placed under the skin of your belly and continuously measures
your glucose levels.
The sensor and transmitter (once snapped in) remain on your belly for the entire
sensor session, up to 7 days.
1.2 TRANSMITTER OVERVIEW
The transmitter wirelessly sends your glucose information to the receiver. The
transmitter and sensor are water resistant when properly connected. Do not
throw away your transmitter. It is reusable.
The transmission range from the transmitter to the receiver is up to 6 meters
without obstruction. Wireless communication does not work well through
water so the range is much less if you are in a pool,
bathtub, water bed, etc.
The transmitter battery will last at least 6 months.
Once you see the transmitter low battery screen
shown on the right, replace the transmitter as soon
as possible. Your transmitter battery may drain as
quickly as one week after this alert appears.