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Before first use, read these precautions to avoid misreadings or injury: If you have lost your printed manual, you
This is the most important section of this "wrist electronic sphygmomanometer ck-102s manual." Accuracy depends entirely on how you position your wrist. Pro tip: When searching, use the exact phrase
| Code | Meaning | |------|---------| | E1 / Err 1 | Cuff too tight/loose | | E2 | Movement during measurement | | E3 | Pressure abnormal (recheck cuff position) | | E5 | Battery low | | Err P | Pulse signal unstable |
If error repeats → wait 5 minutes, relax, and try again.
| Do ✔️ | Don’t ❌ | |-------|----------| | Use same wrist each time | Talk or move during measurement | | Wait 1-2 min between readings | Inflate cuff on injured wrist | | Check battery when display dims | Share cuff without cleaning | | Clean cuff with soft dry cloth | Immerse in water |