Brand BOXYMMaterial ABSColor BlackWeight 28 8gSize 58 x 36 x 33mmBatteries 2 x 1 5V AAA Batteries Not Included Display Mode HD Two Color OLED ScreenUse Environment Operating Temperature 5℃ 40℃Storage Temperature 10℃ 40℃Ambient Humidity 15 To 80 When Working 10 To 80 StorageAtmospheric Pressure 86kpa 106kpaMeasurement Method Non Invasive Continuous Detection Of Arterial Oxygen Saturation And Pulse RateClosed Mode 8 Seconds Without Operation Automatic ShutdownPulse Rate Measuring R ange 30BPM 240BPMMeasurement Accuracy ±1BPM Or ±1 Of The Measured Value Larger Value Power Consumption Less Than 30mAFeature 1 Bright OLED Display And Multi Direction DisplayAdvanced dual OLED display technology helps user get a brighter sharper vision of the information from pulse oximeter Also user can see Pulse Rate bar graph and Plethysmograph in this OLED display Four direction display can allow user to view conveniently the tested result in any direction 2 Accurate And ReliableFingertip Pulse Oximeter can accurately determine your SpO2 blood oxygen saturation levels and PR pulse rate after clinical and professional tests Fast SpO2 readings pulse measurements and display it conveniently on a large digital bright OLED display 3 Alarm And Pulse Rate SoundWhen detecting your pulse the pulse oximeter will make sound which indicate pulse beating rate If the pulse oximeter has detected your pulse rate and SpO2 in a irregular condition the pulse oximeter will make a alert to