Grumpy Old Geeks Products Dexcom G7 15-day Product Dexcom G7 15-day 2 mentions in 1 episode A continuous glucose monitoring system named in an advertisement. Mentions 527: Tribal Knowledge Oct 20, 2021 1:01:31 Dexcom G7 15-day 1:01:46 G7 15-day is for adults 18+.