EMAY Sleep Oxygen Monitor with Built-in Recording Capability Track Continuous Blood Oxygen Levels & Pulse Rate Overnight Provides Sleep Report & Raw Data

With a 40 hours' built-in data memory, the EMAY Oxygen Monitor allows you to record O2 & heart rate continuously., Record First, Sync Later! The oximeter records continuously without real-time connection to the app. Just put it on to record and take it off to sync later at your convenience., Free iOS/Android app to review your historical data second by second, and export summary report to share with your physician., Accurately determine your blood oxygen and pulse rate. Display it on a large and rotating digital LCD display. You do not need to twist your neck trying to see it., This device is intended for sports & aviation use only, not for medical or diagnostic purpose.