The oximeter with respiratory rate detection supports one key adjustment of display direction, which can be adjusted up and down, which is convenient for viewing data. The metal baking paint is more high-end, the panel shell adopts the metal baking process to show the grade the LED high brightness display screen is also clearly visible in the dark.All wrapped rubber anti-skid pad adopts full wrapped rubber anti-skid pad, which is comfortable to handle and not easy to fall off high-speed computing chip is used to ensure fast and accurate calculation results.Blood oxygen saturation measurement range: 70 percent - 99 percent Pulse rate measurement range: 30bpm - 240bpmOxygen saturation measurement accuracy: 70 percent - 99 percent , within the range of 2 percent , 70 percent is not definedPulse rate measurement accuracy: 1bpm or 1 percent of the measured value, whichever is greaterOxygen saturation resolution: oxygen saturation 1 percent Power consumption: less than 30mAAutomatic shutdown: when no finger is inserted, it will shut down automatically in 8 secondsService temperature: 5 - 40Storage humidity: 15 percent - 80 percent working, 10 percent - 80 percent storageAtmospheric pressure: 70kpa - 106kpaBattery model: 2 X 1.5V (2 AAA alkaline, without battery) ABS and PC materialProduct size: 5.6 X 3 X 2.9cmBare weight: 28g Color box size: 8.7 X 6 X3.8cmWeight of color box after packaging: 52g (without battery)Package Included: 1 fingertip oximeter (PE bag), 1 hanging rope, 1 white card lining, 1 English user manual, 1 color box