Dexcom G4® PLATINUM Continuous Glucose Monitoring – AMSL Diabetes
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Dexcom G4® PLATINUM Continuous Glucose Monitoring

The Dexcom G4 PLATINUM continuous glucose monitoring (CGM) system measures your interstitial glucose levels 24 hours a day to reveal a complete view of glucose highs, lows and rates of change over time.

Unlike fingerpricks that give a number for a single point in time, CGM provides dynamic glucose information by showing you, every 5 minutes, where your glucose is, where it’s going and how fast it’s getting there.

Dexcom continuous glucose monitoring (CGM) can be purchased directly from AMSL Diabetes. For first time orders, complete the Dexcom order form and email this to


For more information, contact us on 1300 851 056

Learn more about the CGM Subsidy Initiative

The Australian Government provides access to fully subsidised Dexcom CGM products through the National Diabetes Services Scheme (NDSS). Subsidised access to Dexcom G5 Mobile and Dexcom G4 PLATINUM CGM sensors and transmitters is available through the NDSS for eligible individuals, living with type 1 diabetes. Visit for more information today or visit our CGM Subsidy Initiative page for more information.

Customised Alarms.

Set your blood glucose target range to alert when you go high or low and even customise alarm tones and melodies to suit your needs. The Dexcom G4 PLATINUM has a fixed hypo alert at 3.1mmol/L to give you added peace of mind even while you’re sleeping.

Tiny Sensor Needle.

The sensor introducer needle has a gauge of 26G and a length of 14.6 mm.

6 Metre Transmission Range.

The Dexcom G4 PLATINUM Receiver and Transmitter have a transmission range of up to 6m for flexibility and convenience.

Colour Screen and Sleek Profile.

View your glucose trends in vivid hues of yellow, red and white on the receiver and you’ll see quickly and easily when you’re going high, low or good to go.

At less than 1.27cm thick, the Dexcom G4 PLATINUM receiver is sleek and small and slips easily into your pocket or purse. It’s designed to fit a busy lifestyle.

How it works

The Dexcom G4 PLATINUM CGM system can be used as a standalone system or with the Animas Vibe insulin pump. Here’s how it works:

  1. 1. A tiny sensor is placed under the skin in a similar way to an infusion site and is worn up to 7 days at a time.
  2. 2. The Dexcom G4 PLATINUM transmitter is then attached to the sensor.
  3. 3. Once the sensor is inserted and the transmitter is attached there is a two hour start-up period where no information will be displayed. After this time, you will need to enter two finger stick readings from your blood glucose meter to calibrate the Dexcom system.
  4. The glucose sensor will then continuously measure your interstitial glucose levels (in the fluid space between the cells) and through the transmitter, will send information wirelessly to either your Dexcom Receiver or your Animas Vibe insulin pump. It can provide can provide data up to 288 times in a 24-hour period.

Frequently Asked Questions

For additional resources, please visit our resources page or contact AMSL Diabetes on 1300 851 056.

How accurate is the Dexcom Sensor?

Your sensor glucose readings are meant to be used for trending only. Your blood glucose meter and CGM sensor measure your glucose from two different types of body fluids – blood and interstitial fluid respectively. Therefore, the values from your blood glucose meter and sensor may not always match exactly. For finger-stick BG values below 4.4mmol/L, the CGM reading may be up to 1.11mmol/L different and still be considered accurate. For finger-stick BG values at or above 4.4mmol/L, the CGM reading may be up to 20% different and still be considered accurate.

What is the Profiles feature on the Dexcom G4 PLATINUM System?

Profiles allow you to choose the way you want your alerts to behave. Depending on your daily activities, you can quickly and easily change the way your system alerts you by changing your profile settings to the sound pattern and the volume level that best fits your lifestyle needs. When you choose your profile setting it is important to to know this setting will apply to all alerts, alarms and prompts.

How long does the Transmitter and Sensor last?

The Transmitter battery will last for at least 6 months. However once you see the Transmitter low battery screen, replace the Transmitter as soon as possible. Your Transmitter battery will drain a few days after this screen has appeared. The Transmitter has a warranty of 6 months.


A single Dexcom CGM sensor is approved for 7 days of use.

What is the Dexcom Sensor adhesive made of?

The sensor adhesive is a pressure sensitive acrylic adhesive coated on top of a polyester spun lace fabric. The housing is attached with cyanoacrylate glue from Loctite. Both are medical grade materials. There are no latex or bovine components in the adhesive.

How long does it take to completely charge the Dexcom Receiver?

You can charge your Dexcom Receiver in two ways:

  • By using the Dexcom AC outlet charger, which will fully charge the Receiver in 3 hours.
  1. By using the Dexcom USB charger, which will fully charge the Receiver in 5 hours. To use the USB charger, a Windows-compatible computer is needed and the Dexcom Studio software must be downloaded in order to charge your receiver from a computer. After downloading the software:
    1. Plug the included USB cable into your computer
    2. Plug other end of the USB cable into the Receiver
    3. The battery charging screen will appear on the Receiver

Do I still need to take fingerprick readings?

Yes, you do. Fingerprick readings should always be used for treatment decisions.

Is the Dexcom G4 PLATINUM System waterproof?

While the Dexcom Receiver is not water-resistant, the Dexcom Transmitter and Sensor are water-resistant up to 2.4m for 24 hours.

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