Come and see our amazing products. your blood oxygen level is a measure of much oxygen your red blood cells are carrying.Your body regulates your blood oxygen level.If your blood oxygenation parameter is less than 95% that means you are hypoxemia. Maintaining the precise balance of oxygen-sturated blood is vital to your health.This device can quickly measure the blood oxygen saturation and heart rate in the body, measuring the data accurately.It automatically detects the finger position and shuts down automatically after five seconds without finger, saving energy and saving electricity.It is a good assistant for family epidemic prevention. Pls confirm with us about the packing info, stock color and exact production time before placing your order.