1、This oximeter has screen readings in two directions, easy to understand and self-measuring with one button operation. 2、This oximeter adopts silica gel finger mold, which is soft and comfortable, and will not have any uncomfortable feeling in the measurement process. 3、This oximeter has an automatic shutdown function, which will automatically shut down when the finger leaves the instrument for 8 seconds. 4、This oximeter adopts LED four-color screen, which is compact and light, convenient to carry around, and can be measured anytime and anywhere. 5、This oximeter is very simple to use, it can be opened with a button, and the measurement result can be obtained in 8 seconds. Features: 1. This oximeter has screen readings in two directions, easy to understand and self-measuring with one button operation. 2. This oximeter adopts silica gel finger mold, which is soft and comfortable, and will not have any uncomfortable feeling in the measurement process. 3. This oximeter has an automatic shutdown function, which will automatically shut down when the finger leaves the instrument for 8 seconds. 4. This oximeter adopts LED four-color screen, which is compact and light, convenient to carry around, and can be measured anytime and anywhere. 5. This oximeter is very simple to use, it can be opened with a button, and the measurement result can be obtained in 8 seconds. Specifications: Material: ABS Color: White Power Supply: Dry Cell(Not Include) Rated Voltage: 1.5V Package Size: 7.6 * 5.2 * 3.7cm / 2.99 * 2.04 * 1.45in Package Weight: 36g / 1.26oz Note: Please read the product manual carefully before use. Package list: 1 * Pulse Oximeter 1 * Rope (Black/White Random Color) 1 * Manual 1 * Pulse Oximeter 1 * Rope (Black/White Random Color) 1 * Manual