4 in 1 OLED Finger Pulse Oximeter Fingertip Pulse Oxygen Meter Blood Oxygen Saturation Monitor

Features:
4-in-1 meter able to measure degree of blood oxygen saturation (SPO2), pulse rate(PR), PI blood perfusion index(PI), and respiratory rate(RR).
Adjustable OLED display enables you to view the result from different directions, easy to read.
Adopts advanced chip and delivers reading in 8 seconds for rapid and accurate measurement.
Soft and non-slip silicone finger mould makes it comfortable and good fit without slipping.
Extremely easy to use - simply put your finger in and start the unit without any other complicated instructions.
Automatic power off when there is no signal to save the battery life. Low voltage indication pulse waveform display to remind you replace new batteries.
Sizes in 2.24 by 1.22 by 1.18 inches and weighs only 1 ounce, compact and lighweight to be carried around.
Suitable for middle aged and elderly people, patients required oxygen therapy, athletes, mountaineers, and more.
Note:
*Make sure your fingers are room temperature, because cold fingers don't provide an accurate result.
*Please keep finger steady with no movement when measuring.
*Batteries not included.