Manage Diabetes the Sure and Simple Way: 4SURE offers accessible, accurate, and easy-to-use test strips, lancets, pen needles, and meters. Easy to Use: The 4SURE blood glucose and ketone testing monitor is a portable monitor that features pre and post-meal markers, large backlit display, strip port indicator light, and more — enabling you to use this diabetes testing kit without assistance. Sync and Transfer Data to Your Phone: Easily sync the 4SURE blood glucose testing kit’s data using the Diabetes:M mobile app via Bluetooth. Our blood glucose monitors also feature an independent memory bank that saves up to 1000 results with dates and times. Results Ready in Seconds: The Smart Duo blood sugar monitor is exclusively compatible with 4SURE keto strips and 4SURE blood glucose test strips, providing results in under 5 seconds for glucose testing and under 10 seconds for ketone testing. Accurate Blood Glucose and Ketone Meter: The 4SURE Smart Duo Glucose and Ketone Blood Testing Monitor has a 99.33% accuracy rate, and surpasses ISO standards (ISO 15197:2013 & EN ISO 15197:2015, requirements for blood glucose monitoring systems) which helps ensure a more accurate diabetes testing can be carried out by the end user.