3. Hold the transmitter as shown. Line up the two notches on the transmitter with the side arms
of the sensor. The flat side of the transmitter should face the skin.
4. Slide the transmitter onto the sensor connector until the sensor arms snap into the notches on
the transmitter. If the transmitter is properly connected, and if the sensor has had enough time
to become hydrated with the interstitial fluid, the green light on the transmitter will flash 6 times.
Note: If the transmitter does not flash, see Troubleshooting, page 33.
5. When the transmitter light flashes green after connecting to the sensor, use the system to start
the sensor. For more instructions, see the Guardian App User Guide.
6. Attach the adhesive tab of the sensor to the transmitter.
7. After the transmitter is connected, consult the Guardian 4 Sensor User Guide for instructions on
how to apply a second tape.
8. Refer to the Guardian App User Guide for pairing.
Disconnecting the transmitter from the sensor
To disconnect the transmitter from the sensor:
1. Carefully remove any tape from the transmitter and sensor.
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