HESLEY Finger Pulse Oximeter (SpO2) Blood Oxygen Saturation Monitor with Pulse Rate Measurements and Pulse Bar Graph Digital Reading LED Display Pulse Oximeter  (Blue, Black)

Our pulse oximeter has been clinically tested and consistently beat other pulse oximeter in terms of accuracy and reliability, it is found to be a fast and absolutely reliable gadget to use. It is ideal for the oxygen and pulse readings, and have a very small error margin. RELIABLE-From the ABS shell, OLED screen, acrylic panel, high-speed computing chips , anti-skip silicone inside, medical-grade silicone finger mold and various electronic components of oxygen finger monitor, all adopt high-quality materials and components. Even the spring of the oximeter finger has been subjected to thousands of tests. We will never use any cheap material to make oxygen monitor.