Heartsure Pulse OximeterThis product is useful for measuring the oxygen saturation in your blood and also your pulse rate pre and post exercise, pre and post operative conditions and for monitoring respiratory conditions such as COPD and asthma. Features: Measures oxygen saturation Measures Pulse Rate Dual colour OLED display Big font display 6 display modes Alarm function Multidirectional display Portable and convenient Low perfusion: 0. 2% (works with low blood flow to the
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