Yeskace Oximeter Fingertip Blood Oxygen Saturation Monitor with Alarm, Heart Rate Monitor with Pulse Rate for Wellness Use, Batteries Included

MEDICALLY ACCURATE: Accurately determine your SPO2, pulse rate, perfusion index and pulse strengrh in 8 seconds and display it conveniently on a large display. Abnormal Vaule WARNING Function. The screen flashes to warn of abnormal blood oxygen level and pulse rate. The SPO2 alarm threshold is 90%. The highest threhold for PR alarm is 35 bpm and lowest threshold is 100 bpm. It helps to pay attention to your health. Two-color highliht OLED screen displays clear readings. One-button operation for easy use. Automatic power off.Low battery indicator. What you get: A professional fingertip oximeter. 2free AAA batteries. The professional after-sales team will sreve you.