: Provides an extra layer of accuracy and measurement reliability. One-Button Operation

| Symbol | Meaning | Action Required | |--------|---------|----------------| | | Irregular heartbeat detected during measurement | Consult a doctor if seen frequently | | Motion symbol | Body movement during reading | Repeat measurement, remain still | | E1 error code | Air circuit abnormality or cuff not attached properly | Check cuff connection and re-wrap | | E2 error code | Inflation pressure too high | Restart; cuff may be too tight | | E3 error code | Cuff does not deflate properly | Remove cuff, wait 10 minutes, try again | | E4 error code | Movement or talking during measurement | Stay still and silent, then retake | | Battery symbol | Low battery | Replace all 4 AA batteries |

Avoid paying for manuals. The Omron M4 HEM 722C1-E manual is free for all owners. Be cautious of suspicious download links that may contain malware.

Proper care extends the life of your Omron M4. The provides these guidelines: