Fingertip pulse oximeter PO101

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LED display 8 seconds fast measurement Automatic power off when no signal Low voltage indicator Pulse bar graph display *Features: 1) It is small, light and easy to carry; 2)Accurately measures SpO2 value and Pulse Rate; 3) LCD display of SpO2, Pulse Rate and pulse intensity by bar-graph; 4) Automatic power-off if finger off longer than 8 seconds; 5) More than 50 hours continuous working time with 2 AAA alkaline batteries; 6)Low battery voltage indication. *Technical Parameters: 1)LED display 2) SPO2: 35-99% Pulse Ratio30-250BPM 3)Resolution: 1% for SPO2, 1BPM for pulse ratio 4)Accuracy: ±2% (70-99), unspecified (<70%) for SPO2, ±2BPM or±2% (select larger) for pulse ratio 5)Power: 1.5V (AAA size) alkaline batteries × 2 6)Can work more than 30hours continuously Interference resistance capacity against ambient light and measurement performance at low perfusion