"LOW" indicates a glucose reading lower than 40 mg/dL.
"HIGH" indicates a glucose reading higher than 500 mg/dL.
If either of these readings are seen, the FreeStyle LibreLink* user should check their blood glucose with a test strip.
*The FreeStyle LibreLink app is only compatible with certain mobile devices and operating systems. Please check our compatibility guide for more information about device compatibility before using the app. Use of the FreeStyle LibreLink app requires registration with LibreView.