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.