Owner's Booklets and Instructions for Use that are used with the following blood glucose measuring devices. Description/Item: Walgreens TRUE METRIX AIR Kit/REA4001-01, Leader TRUE METRIX AIR Kit/REA4002-01, CVS TRUE METRIX AIR Kit/REA4007-01, GNP TRUE METRIX AIR Kit/REA4011-01, Meijer TRUE METRIX AIR Kit/REA4019-01, Publix TRUE METRIX AIR Kit/REA4020-01, Discount Drug Mart TRUE METRIX AIR Kit/REA4025-01, HEB TRUE METRIX AIR Kit/REA4031-01, SunmarkTRUE METRIX AIR Kit/REA4054-01, Rite AidTRUE METRIX AIR Kit/REA4066-01, Centerwell TRUE METRIX AIR Kit/REA4081-01, HumanaTRUE METRIX AIR Meter Only/REA4081-40, Centerwell TRUE METRIX AIR Starter Kit/REA4081-43, Healthmart TRUE METRIX AIR Kit/REA4089-01, Relion TRUE METRIX AIR Kit/REA4094-01, Relion TRUE METRIX AIR Kit/REA4094-01RX, Kroger TRUE METRIX AIR Kit/REA4203-01, Foster and Thrive TRUE METRIX AIR Kit/REA4211-01, TRUE METRIX AIR Kit/REA4H01-01, TRUE METRIX AIR NFRS Meter Only/REA4H01-40, TRUE METRIX AIR NFRS Starter Kit/REA4H01-43, TRUE METRIX AIR Kit (mg/dL)/REA4i03-01, TRUE METRIX AIR Starter Kit (mg/dL)/REA4i03-02, Walmart (MediMart) TRUE METRIX AIR Meter Only (Mexico - mg/dL)/REA4i04-00, TRUE METRIX AIR Kit (Australia - mmol/L)/REA4i81-11, TRUE METRIX AIR Kit (United Kingdom - mmol/L)/REA4i82-11, TRUE METRIX AIR Starter Kit (United Kingdom - mmol/L)/REA4i82-12. Reason: The system labeling (user manual and online labeling) did not provide adequate directions for lay users to act on the E-5 error code. The error code description and recommended actions for the E-5 error code in the labeling do not: (a) clearly emphasize that an E-5 error code could represent a very high blood glucose level, and (b) prominently convey the appropriate immediate actions, such as contacting a healthcare professional. This could lead to a delay in treatment if the user does not seek medical attention immediately when receiving an E-5 error code and experiencing symptoms of high glucose.. Classification: Class I. Quantity: 3,678,026. Distribution: Worldwide distribution - US Nationwide including Puerto Rico and the countries of Mexico, United Kingdom, Jamaica, Trinidad & Tobago, and Australia.