Feature: 1. Measure blood oxygen saturation and pulse rate fast and accurately, convenient and practical. 2. Press and hold for three seconds to turn on, and automatically turn off after 7 seconds when no finger is inserted. 3. Suitable for daily use, simple operation, measurement at any time in order to know your healthy status in time. 4. Suitable for different place such as hospitals, homes, schools, and physical examination centers, etc. 5. Light weight and in small size, easy to carry when going out, wide application range. Specification: Condition: 100% Brand New Item Type: Fingertip Pulse Oximeter Material: ABS Product Display: TFT color screen, support direction switching Product Blood Oxygen Saturation Measurement Range: 35-100% Product Pulse Rate Measurement Range: 30-240BPM Applicable People: General Product Accuracy: ±2% Product Power Supply: 2 x AAA Batteries (Not Included) Working Temperature: 5-40℃ Function Switch: Automatic shutdown after 7 seconds when no finger is inserted Battery: LR03, 1.5V. Package List: 1 x Oximeter1 x Strap1 x Manual