Recommend [Roche] new contact customer service to send a link1. Simple: automatic code adjustment without card, sugar measurement in two steps; wide test strip width, large blood sampling area, blood is not afraid of shaking outside the machine; the operation for the elderly is also very simple.2. Professional: The blood glucose detection system is stable; it meets the international ISO15197:2013 accuracy standard.3. Painless blood sampling: ballistic principle, straight up and down, small wound area; 11 levels of blood sampling depth selection, flexible adjustment.