DescriptionThis item is a pulse oximeter. Made of premium material, durable and practical. Easy to use. Light and compact, you only need to put your finger in the fingertip pulse oximeter testing chamber, the result will be shown. Compact size for easy to carry.Features- Color: White. - Material: Plastic. - Size: 5.7x3.3x3.2cm/2.2x1.3x1.3 inch. - Small size and lightweight, easy and convenient to carry. - Made using premium material, manufactured with craftsmanship, this item would be durable for using of a long time. - Suitable for the hospital, oxygen bar, health (using them before or after sport, do not advising using them during the movement), and community health care, etc. - Also can be a good gift for your parents, they will like it. - It has a simple design, but very practical in use.Specifications- Display Type: OLED display - SpO2 Measurement range: 70%~99%; Accuracy: 2% on the stage of 80%~100%; 3% on the stage of 70%~80%; Below 70% no requirement - Resolution: 1% - PR:Measurement range: 25BPM~250BPM; Accuracy: 1BPM or 1%(the larger one) - PI index: measurement scope: 0~20 (optional) - Power consumption: below 30mA