Description:- Features for Fingertip Pulse Oximeter: - Reliable accuracy and durability- Two Color OLED Display、 four display modes.-4-Direction Display adjustable.- Low voltage indicator、 Real-time spot-checks.- Low power consumption、50 hours continuous to work.- Low Perfusion ?¨¹0.4%- Automatic power off when no signal- Small and light weight、 convenient to carry- Widely used in hospital、 home healthcare、 oxygen bar、 community medical centre、 alpine area、 sports healthcare etc.Performance:- Display mode: 1.1-inch color OLED screen display- Display resolution: 96 * 64- Accuracy: 70% ~ 100%: ?¨¤ 2%、 less than 70% not defined- Pulse rate measuring range: 30bpm ~ 250bpm (resolution 1bpm)- Accuracy: ?¨¤ 2bpm or ?¨¤ 2% whichever is greater- Under weak perfusion error: filling in the pulse of 0.4%、 the oximeter can display the correct oxygen saturation and pulse rate values、 oxygen saturation error of ?¨¤ 4%; pulse rate error is ?¨¤ 2% or ?¨¤ 2bpm whichever is greater.- Anti-interference ability ambient light: natural light in the room compared to measured values and the measured values of oxygen and darkroom conditions under the existing lighting、 the deviation is less than ?¨¤ 1%- Consumption: less than 30 mA- Operating Voltage: DC 3.0V- Battery: 2 AAA 1.5V alkaline batteries¡ê¡§without¡ê?- Battery Working Time: Minimum lasts 20 hours、 the theoretical value of 32 hours