KIUZOU FDA & CE Certified Pulse Oximeter 

• ACCURATE & RELIABLE: Blood oxygen accuracy is ±2%, pulse rate is ±1%, SpO2 measurement range is 70% to 99%, PI measurement range is 0.2%-30%, (PR)BPM measurement range is 30 bpm - 250 bpm. When the body abnormal data is measured, a buzzer will be automatically sent. 
• QUICK & CONVENIENT READINGS: High precision two-color oximeter displays SpO2 in four directions, six display modes. The bright OLED display cover prevents ambient light from escaping, making the readings clear and clear, with 5 levels of brightness adjustable, and a low-power indicator.
• 4-in-1 FUNCTION: SPO2 sensor will check and display blood oxygen SPO2 value, pulse PR value, blood oxygen bar graph, pulse waveform graph, PI (perfusion index), respiratory rate monitoring parameter + sleep monitoring parameter in real time.
• PORTABLE & LIGHTWEIGHT: Each oximeter weighs only 41g and comes with a neck lanyard, attaches the lanyard to the case or connects directly to the oximeter, so you can use the portable oxygen sensor at any time.