A: The manual states that the IHD (Irregular Heartbeat Detector) can indicate irregularities but is not a diagnostic tool for AFib. If you have known arrhythmia, discuss home monitoring with your cardiologist.

The explicitly warns against submerging the device or pouring liquid on it.

You cannot measure accurately without the correct time stamp. Here is the sequence from the official manual:

To get the most out of your CVS BP3MV1-3X manual, follow these steps:

The device will show a battery symbol when power is low. Do not use rechargeable (Ni-Cd) batteries as they provide inconsistent voltage.