High Accuarcy: With ±2% margin of error oxygen saturation, HOLFENRY pulse oximeter oxygen machine can accuratly measure SpO2/ Heart Rate/ PI.
Easier Use: Just place our finger on the sp02 pulse oximeter' hole, we can get real-time readings from finger oxygen monitor within 8 seconds.
Suitable For: Adults age 12+ can take control of their respiratory health and track their blood oxygen levels every so often. As if those with conditions such as COPD, pneumonia, or sleep apnea; Plus, athletes, sport fans who want to monitor their performance.
Flashing Alert: For low Spo2 readings below 93% to alert you by the red LED indicator of flashbacks. Please be a peaceful-state and do not move during checking oxygen levels.
What You Get: 1* finger pulse oximeter, 1* lanyard, 2*AAA batteries. Note: this oxygen levels checking device is only used for sports and aviation purposes, not intended for medical purposes .