Feature: 1. Multi-function: Digital pulse oximeter can be used to measure pulse rate, blood oxygen saturation levels accurately. 2. Easy to Read: Support SPO2, pulse, and bar chart, you can view your result very clear with LCD display. 3. Easy to Use: Accurate and reliable, one button operation, just clip it on to your finger and turn it on at the press of a button. 4. Low Power Consumption: Automatic power off after 8s when not in use. 5. Widely Applicable: Suitable for everyday use. Widely used in family, oxygen bar, physical care in sports, etc. 6. Compact Size: The oximeter is lightweight and portable. Specification: Finger pulse oximeter is an economical and accurate method to detect pulse rate and blood oxygen saturation by finger. Small size, easy to carry. Suitable for daily use, measuring your health at any time. Features: Multi-function: Digital pulse oximeter can be used to measure pulse rate, blood oxygen saturation levels accurately. Easy to Read: Support SPO2, pulse, and bar chart, you can view your result very clear with LCD display. Easy to Use: Accurate and reliable, one button operation, just clip it on to your finger and turn it on at the press of a button. Low Power Consumption: Automatic power off after 8s when not in use. Widely Applicable: Suitable for everyday use. Widely used in family, oxygen bar, physical care in sports, etc. Compact Size: The oximeter is lightweight and portable. Touch the button under the working state can change the display mode. Specifications: Color: blue Material: Plastic Blood oxygen measurement accuracy: andplusmn 2 percent on the stage of 80 - 99 percent , andplusmn 3 percent on the stage of 70 - 79 percent , less than 70 percent undefined Blood oxygen measurement range: 70 - 99 percent (resolution is 1 percent ) Pulse measurement range: 30 - 240BPM (resolution is 1BPM) Power consumption:below 30mA Measuring time: about 10 seconds Automatic shutdown: when no finger is inserted, it will automatically shut down within 8 seconds Battery: 2xAAA Batteries (Not Included) Size: shown as picture Package size: 9 x 6 x 4cm Package Weight: 63g Packing List: 1 x Oximeter 1 x Lanyard 1 x Userand 39 s Manual Package List: 1 x Oximeter 1 x Lanyard 1 x Userand 39 s Manual