CGM features and fixes · Medtrum TouchCare Nano CGM

Medtrum TouchCare Nano CGM warm-up: how long it takes

Warm-up lasts up to 30 minutes after the sensor connects. If you do not enter the sensor code, you must calibrate twice on the first day. (Medtrum UK user guide, p. 13)

What the maker says to do

1. Connect the sensor from the Monitor screen or the CGM menu.
2. Enter the 4-digit sensor code from the package, or scan its QR code.
3. Wait up to 30 minutes for the warm-up to end.

The Nano CGM is not FDA-cleared and the EasySense and EasyFollow apps are not in the US App Store, so these answers come from Medtrum's international (WW) and UK English pages and guides.

More on the Medtrum TouchCare Nano CGM

• Follower app not updating
• Signal loss
• Sensor error
• Sensor failed early
• Alarms not sounding
• Follower not getting alerts
• Compatible phones

Warm-up on other CGMs

• Dexcom G6
• Dexcom G7
• Dexcom ONE+
• Dexcom Stelo
• FreeStyle Libre 2 and 2 Plus
• FreeStyle Libre 3 and 3 Plus
• Eversense 365
• Medtronic Simplera
• SIBIONICS GS1

Sources, quoted

• Medtrum UK user guide, p. 13: “When connected, the sensor will go through a warm-up period that may last up to 30 minutes.”
• Medtrum UK user guide, p. 13: “Connect the sensor on the Monitor Screen or CGM menu.”
• Medtrum UK user guide, p. 13: “If the Factory Calibration is turned on, you can enter the sensor code by scanning the QR code or manually entering the 4-digit code on the back of the sensor package, then the calibrations aren't required.”
• Medtrum UK user guide, p. 13: “If the sensor code is not entered, the sensor need to be calibrated twice on the first day.”

Every quote is checked against its source page before each update of this site; last checked 2026-10-06. Makers change their apps; the source page is the authority when it differs.