User's Manual

G4-Global System User’s Guide | 15
1.1 SENSOR OVERVIEW
The Sensor is the System component that continuously measures your glucose
levels. You will use a blood glucose meter to calibrate your glucose readings
measured by the Sensor. The Transmitter collects the Sensor readings and
sends them to the Receiver using wireless, radio frequency (RF) technology.
This happens every 5 minutes for up to 7 days.
The Sensor unit has an Applicator (needle, sensor, plastic housing), Sensor
Probe, and Sensor Pod. The Applicator includes a Safety Lock/Transmitter
Key to keep the needle in place until you are ready to insert. After taking
off the Safety Lock, you will insert the Sensor Probe just beneath the skin
(subcutaneous tissue) of your belly using a small needle inside the Applicator.
The needle is inserted just under the skin at an angle and carries the Sensor
Probe with it. After you insert the needle and Sensor Probe, you will pull
the needle back into the Applicator. This leaves the Sensor Probe behind to
continuously measure your glucose levels. The Applicator, with the needle
inside, is pulled off from the Sensor Pod and should be thrown away. Save the
Safety Lock/Transmitter Key because you can use it to remove the Transmitter
at the end of a continuous monitoring session.
The Sensor Probe lies underneath your skin at an angle and continuously
measures your glucose levels for up to 7 days. The Sensor Pod and Transmitter
(once snapped in) remain on your belly for the entire Sensor session. The
Sensor insertion site is similar to an insulin pump infusion site.
Plunger
Applicator
(needle/sensor probe inside)
Transmitter Latch
Safety Lock/
Transmitter Release
Collar
Sensor Pod
Release Tab