CGM features and fixes · SIBIONICS GS1

SIBIONICS GS1 sensor error

A Technical Alarm means the sensor failed and cannot be turned off. A loose sensor can give no readings or false lows. (SIBIONICS user guide, p. 36; SIBIONICS user guide, p. 48; SIBIONICS user guide, p. 46; SIBIONICS user guide, p. 10)

What the maker says to do

1. Do a fingerstick test when there is no current glucose number.
2. Check that the sensor has not come loose.
3. If it has come loose, remove it and apply a new one; do not try to push it back in.
4. Email [email protected] to report it.

The GS1 is not FDA-cleared and is not sold in the US; these answers come from SIBIONICS's EU/UK English user guide, its sibionicscgm.com pages and the UK App Store.

More on the SIBIONICS GS1

• Signal loss
• Warm-up
• Sensor failed early
• Alarms not sounding
• Compatible phones

Sensor error on other CGMs

• Dexcom G6
• Dexcom G7
• Dexcom ONE+
• Dexcom Stelo
• FreeStyle Libre 2 and 2 Plus
• FreeStyle Libre 3 and 3 Plus
• Medtrum TouchCare Nano CGM
• Eversense 365
• Medtronic Simplera

Sources, quoted

• SIBIONICS user guide, p. 36: “Tells you when your Sensor failed. Technical Alarm cannot be turned off.”
• SIBIONICS user guide, p. 48: “When there is no Current Glucose number, such as when you receive an error message or a low or high result, you don’t have enough information to make a treatment decision.”
• SIBIONICS user guide, p. 46: “If the Sensor becomes loosen or the Sensor tip is coming out of the skin, no readings or unreliable low readings may be obtained.”
• SIBIONICS user guide, p. 10: “If it has come loose, remove it, apply a new one. Do not attempt to reinsert the Sensor.”
• SIBIONICS user guide, p. 10: “Report these cases by contacting Customer Service at [email protected].”

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.