The G6 has a special membrane on each sensor that eliminates the body chemistry interference from these medications, which previously could give false high glucose results. No more interference from medications containing acetaminophen (Tylenol), which has been an ongoing issue in the CGM world. The Dexcom G6 is approved for children ages 2 years and up. There are some DIY methods to restart a sensor, but those are considered “ off-label” and not endorsed by the FDA. The FDA actually laid this out in a letter to Dexcom describing requirements for the G6. There is now a hard shutoff at the 10-day mark, meaning you won’t be able to extend the sensor for prolonged wear, as many people did with previous versions. The water-resistant G6 sensor is said to be more accurate and reliable and can be worn for 10 days compared with the earlier model’s 7 days. Note that if this code is not scanned or entered, the sensor will require daily calibrations every 12 hours, as was required with the previous G5 model. You need to enter that code into the mobile app or separate receiver device just before insertion, which triggers the “no calibration” functionality. Sensor codeĮach Dexcom G6 sensor has a four-number code printed on that adhesive backing that you peel off before attaching the sensor to your body. The disposal applicator piece will automatically separate from the sensor once it’s on your body. To insert, you pull the adhesive backing, place the unit on your skin, and push the button. The sensors come in boxes of three, preassembled into the auto-inserter, so no needles are exposed. It’s even good for one-handed insertions. It’s a plastic, spring-loaded, self-contained auto-applicator that requires you to do nothing but press an orange button to inject a new sensor. The G6 offers a whole new inserter design. What’s awesome is that even though the G6 is factory-calibrated, Dexcom has built in the capability for users to still enter calibrations manually if they choose to do so (for extra confidence in accuracy). That means it has a nonadjunctive designation from the FDA, so it can be used in making insulin dosing and treatment decisions without a backup fingerstick test. The G6 does not require once or twice daily calibrations as previous versions did. With built-in Bluetooth connectivity, the G6 sends results every 5 minutes directly to a smartphone app, a separate receiver, or to compatible devices within 20 feet. The G6 transmitter is a third smaller, thinner, and lower profile than the previous model.

This is the thin gray part that clicks on top of the sensor casing worn on the body.

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