["brand new and high quality\nFeatures:\nMonitoring person's blood oxygen level(SpO2), pulse rate(PR) and perfusion lndex(PI).\nHigh accuracy and real-time measurement indication.Good assistant for doctors and nurses.\nLarge screen provides clear and comfortable measurement.\nwhen no finger is inserted, it will turn off automatically in 15 seconds.\nSmall and compact size can be conveniently carried in a pocket, backpack or other methods. \nCome with lanyard, you can wear around the neck while hiking or training.\nSuitable for use at home or outdoor activities.\n\nNotice:\nDark Blue fingertip pulse oximeter is design with 4-color screen display.\nGray,for Sky blue,Pink fingertip pulse oximeter are design with 4-color screen display.\n\nSpecification:\nParameters: Pulse Rate,SpO2,Perfusion Index\nBattery: 2x AAA batteries (not included)\nPower consumption: less than 30 mA\nVoltage: DC3.0V\nScreen resolution: 128 x 64PR\nMeasuring range: 30bpm~250bpm\nBlood oxygen saturation measurement range: 0%~\nMaterial: ABS\nColor: Deep blue,Gray,for Sky blue,Pink\nSize:app. 5.7 x 3.2 x 3.1cm / 2.24 x 1.25 x 1.22in\nQuantity: 1 set\n\nNote:\nTransition: 1cm=10mm=0.39inch\nNo retail package.\nPlease allow 1-2cm 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 Pulse Oximeter\n1 x Lanyard\n1 x User Manual(other accessories demo in the picture is not included.)"]