We continue to have frequent posts from non-CGM users, presenting
costs based on the FDA-Approved 72-hour "Sensor Life". The posts may
be well intentioned, but they are horribly misleading for anybody who
is seriously considering purchase of a CGMS. I'm spending less than
$70 per month on Sensors.

I use Dexcom, and consistently get about 18 days per Sensor.

YMMV, but Nearly all of the **ACTUAL USERS** of CGMS do the
"off-label" trick of leaving the Sensor in when the 72 hours expires, and simply
running the procedure to "find the new Sensor I just put in" when the
time is up. The CGM happily finds the "new" (old) Sensor, it waits for
the calibration period (2 hours in my case), and then you're good for
another 72 hours.

The on-label usage is only 72 hours, and I suspect that the Companies
would get into trouble if they officially wrote recommended off-label
usage. They also REALLY WANT YOUR MONEY; Dexcom, in particular, is
really struggling financially because people like me are buying a new
5-pack of Sensors once every 3 MONTHS, instead of once every 2 weeks
as they had expected. So, you won't hear about the real cost from
them.