That is used in pulmonary problems. It is also a technological device measuring the oxygen level from pulse rate. It has the provision of LED light with a full- color digital display that can store up of 4 hours data with auditory or visual alarms to give a signal of wrist placement or bad finger. If the battery is low it gives signal to aware of low battery.
That device is a highly recommended product. Doctors recommend it to patients suffering from respiratory problems like asthma, C O P D, heart disease, bronchitis etc. The device can be used for long periods for oxygen monitoring at a stretch.Thanks
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