The LifeSmart Smart Blood Glucose plus Ketone Monitor system (Bluetooth) can accurately measure your blood glucose, ketone and hematocrit levels. Its wide hematocrit range (0-70%) enables it to be used on infants to old age adults. It actively connects to your smartphone (Android or Apple) allowing you to transfer, view and analyze your meaningful data in real time. Using the free app gives you the flexibility to share your data with your doctor, dietician or family members.