NAMU ALEX-N5, Руководство пользователя

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Improper Wearing of ALEX
1) If sensor is slanted, or higher or lower than the end hairline
2) If sensor is being pressed due to tightly worn device
3) If device is not properly fit into the neck so it is not touching the surface of your neck, or only the
upper side of sensor is touching the neck
(Good) (Bad)