The low battery message does not remain on the screen and is easily missed.The low battery audible alert is the same or similar to the tone of the patient's heart rate.The volume of low battery audible alert is easily missed, as it is the same volume as the heart rate tone.Users suggest the manufacturer improve the low battery message on the screen as well as the audible alert.Suggest the audible alert speak to say: "low battery" and the "low battery" message remain on the screen until a/c power is connected.
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