["Features:\nbrand new and high quality\nDisplay parameters: blood oxygen SpO2, pulse rate PR, blood oxygen bar graph, pulse rate oscillogram, PI, respiratory rate monitoring.\nDisplay screen: blue+yellow dual color OLED display, 5 level brightness adjustment.\nDisplay direction: 4 direction, 4 display mode.\nEnergy conservation and environment protection: Low power consumption, using 2 AAA batteries(not included), continuous use for 40 hours.\nLow battery warning: when the battery is too low, there is a low battery warning.\nAutomatic shutdown: 8 seconds automatic shutdown when no finger is inserted\nIntegrating blood oxygen probe and processing display module. \nEasy to use, small size, light weight and easy to carry.\n\nSpecification:\nProduct name: Fingertip Pulse Oximeter\nOximeter saturation measurement range: 70% to 99%\nPulse rate measuring range: 30BPM-240BPM\nOximeter saturation accuracy: 70% to 99% within the range of ±2%，≤70% not required\nPulse rate accuracy: ±1BPM\nOximeter saturation resolution: blood oxygen saturation ±1% \nBlood perfusion index: ≥0.2%, ±0.1%\nSleep monitoring time: No\nPower dissipatio: less than 30mA\nAutomatic shutdown: 8 seconds automatic shutdown when no finger is inserted\nWorking temperature: 5℃-40℃\nStorage humidity: 15%-80%\nWorking humidity: 10%-80%\nStorage pressure: 70Kpa-106Kpa\nMaterial: ABS+PC\nOptional color: Black Silver, White Silver\nPackage Box Size: app. 8.7x6x3.8cm(3.43x2.36x1.5in)\nPower supply: 2 x AAA batteries(not included)\nQuantity: 1 set\n\nNote:\nTransition: 1cm=10mm=0.39inch\nNo retail package.\nPlease allow 1-3cm error due to manual measurement. pls make sure you do not mind before you bid.\nDue to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you!\n\nPackage includes:\n1 x Fingertip Oximeter\n1 x Lanyard\n1 x English User Manual\n(other accessories demo in the picture is not included.)"]