# Dexcom G7 10 & 15 day sensor with T:Slim pump

**URL:** <https://forum.fudiabetes.org/t/dexcom-g7-10-15-day-sensor-with-t-slim-pump/16422>\
**Category:** Tips, Tech & Gear\
**Tags:** cgm, tandem-x2, dexcom-g7\
**Created:** [October 11, 2026, 1:55pm UTC](https://forum.fudiabetes.org/t/dexcom-g7-10-15-day-sensor-with-t-slim-pump/16422 "2026-10-11T13:55:14Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![CarlosLuis](https://yyz2.discourse-cdn.com/flex030/user_avatar/forum.fudiabetes.org/carlosluis/32/11389_2.png) [@CarlosLuis](https://forum.fudiabetes.org/u/CarlosLuis)\
**Post date:** [October 11, 2026, 1:55pm UTC](https://forum.fudiabetes.org/t/dexcom-g7-10-15-day-sensor-with-t-slim-pump/16422/1 "2026-10-11T13:55:14Z")

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I know that both 10 & 15 day sensors work with Tandem pumps. I was given a 15 day sample by my doctor.

Can I pair to the 15 day sensor and go back to the 10 day sensors?