· The CR-A4 finger clip pulse oximeter is a portable medical device used to measure human blood oxygen saturation and pulse rate. It is mainly applied in scenarios such as home health monitoring and rapid detection in medical institutions, helping users timely understand their oxygenation status so as to take corresponding measures to maintain health or assist in medical decision-making.

- Accurate measurement: Adopts mature photoelectric technology for precise measurement of blood oxygen saturation and pulse rate.

- Lightweight and portable: Compact overall design for easy carrying.

- Simple operation: The operation process is straightforward, requiring no professional knowledge. Both the elderly and children can use it easily.

- Quick reading: After measurement, clear data is displayed on the screen rapidly, allowing users to quickly check their blood oxygen and pulse rate status and promptly detect physical changes.