Quick answer: This is a single Dexcom G7 sensor — one all-in-one, disposable sensor-and-transmitter for the Dexcom G7 continuous glucose monitoring (CGM) system. It has a 10-day wear period plus a 12-hour grace period, for up to 10.5 days of use, with automatic readings every 5 minutes and no fingersticks, scanning, or calibration. You'll need a display device (a compatible smartphone with the Dexcom G7 app, or the Dexcom G7 Receiver), sold separately. A prescription is required. For ages 2 and up.
What is the Dexcom G7 sensor?
The G7 sensor is the wearable part of the Dexcom G7 CGM system. Unlike the older G6, the G7 combines the sensor and transmitter into a single, disposable unit, which makes it simpler to apply and lower-profile on the body. It is significantly smaller than previous models and has a 30-minute warm-up time, compared with 2 hours on the G6. Once applied, it continuously measures glucose and sends readings to your display device, with customizable high and low alerts and predictive "Urgent Low Soon" warnings to help you act sooner.
Key features
- All-in-one disposable design — sensor and transmitter combined; ~60% smaller than the G6.
- Up to 10.5 days of wear — 10-day period plus a 12-hour grace window.
- 30-minute warm-up — get readings quickly after applying.
- No fingersticks or calibration — factory-calibrated, automatic readings every 5 minutes.
- Water resistant — submersible to about 2.4 m (8 ft) per Dexcom.
- Insulin-pump compatible — works with Omnipod 5 and Tandem t:slim X2 (Control-IQ).
Specifications
| Specification | Detail |
| Product type | CGM sensor (all-in-one sensor/transmitter) |
| Wear time | 10 days + 12-hour grace (up to 10.5 days) |
| Warm-up | ~30 minutes |
| Reading frequency | Every 5 minutes |
| Calibration | Not required (factory calibrated) |
| Water resistance | ~2.4 m (8 ft) |
| Ages | 2 and up |
| Pack quantity | 1 sensor |
| Prescription | Required (U.S.) |
| Note | Display device sold separately |
Is it compatible with my setup?
The G7 sensor requires a Dexcom G7 display device — either a compatible smartphone running the Dexcom G7 app, or the Dexcom G7 Receiver. It also works with the Omnipod 5 and Tandem t:slim X2 insulin pumps. Note: the standard Dexcom G7 (10-day) is for ages 2 and up; the separate Dexcom G7 15-Day sensor is a different product cleared for adults 18 and over.
Frequently asked questions
How long does one sensor last? Up to 10.5 days — a 10-day wear period plus a 12-hour grace period.
Do I need fingersticks or calibration? No. The G7 is factory-calibrated and provides readings without routine fingersticks. (Use a blood glucose meter if symptoms don't match your readings.)
What do I need to use it? A Dexcom G7 display device — a compatible smartphone with the G7 app, or the Dexcom G7 Receiver (sold separately).
Can I shower or swim with it? Yes — the sensor is water resistant and submersible to about 2.4 m (8 ft) per Dexcom.
Do I need a prescription? Yes. In the U.S., Dexcom G7 sensors require a valid prescription.
Does it work with insulin pumps? Yes — with the Omnipod 5 and Tandem t:slim X2 systems.
Can I get it delivered in Brooklyn or shipped nationwide? Yes — Task Supply Corp offers FedEx shipping throughout the continental U.S., plus local pickup and delivery in Brooklyn and all five boroughs of New York City.
This is a prescription medical device. Use it according to the Dexcom instructions for use and your healthcare provider's guidance, and confirm with a blood glucose meter if symptoms don't match your readings.