You should only use the pulse ox before or after your exercise. ABS material, the fingertip clip use silica gel material which is soft and easy to apply. Lightweight and Portable: oxygen saturation monitor is very light and small in size, low power consumption, and convenient in carrying.
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Display type: TFT display SpO2. It is very suitable for oxygen and pulse reading, and has very small error margin. The bright OLED display can be clearly read in the dark, indoors or in bright sunlight.
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Opened never used
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Note: All HOLFENRY products are covered by 12 months service. --High Accuarcy. The screen displays the readings almost instantly, the numbers are large and clear, easy to read. If the data is lower much than the normal, the data on the red LED will C13.
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