SENT FROM THE UK Wellue Fingertip Pulse Oximeter, Blood Oxygen Saturation Monitor, O2 Meter & Heart Rate Monitor with Lanyard & Batteries Accurately measures your SpO2, pulse rate, pulse strength and pulse waveform and conveniently displays them on a large OLED screen. The value on screen will flash when your O2 level or PR value exceeds the preset limit. Light-weight and compact, easy to handle and to carry with you for results at home or outdoors. This device allows for almost all size of fingers from children to adults due to the finger chamber design. The recommended finger thickness should be between 8-25.4mm.
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