Model No. Diamond Voice Blood Testing ?Sample Size: 0.5 ?L ?Measuring time: within 5 seconds ?Alternative Site Testing: Capillary and Venous Test Strips ?Enzyme: GDH-FAD ?No Strip Coding Memory Capacity ?450 memory capacity with date and time ?AC/PC in memory ?7/14/21/28/60-90 days average Talking Meter ?YES Functions ?4 set of daily alarms ?Ketone warning YES?240 mg/dL (13.3 mmol/L) ?Strip indication light ?Strip ejection Data Transmission ?Micro USB Display ?LCD backlight Contrasting Brightness ?YES Portability ?YES Power Source ?TWO 1.5V AAA alkaline battery Dimension and Weight ?104.4mm(L) × 58.0mm(W) × 23.0mm(H) ?71.2g (Without battery) Measuring Conditions ?Storage Condition :-20°C to 60°C below 95% of Relative Humidity ?Operating Condition 10°C to 40°C below 85% Relative Humidity (non- condensing) ?Result Range :20-600mg/dL (0.5-33.3mmol/L)