112R Pulse oximeterColor: Silver Blood oxygen saturation: Measurement range: 70% to 99% Measurement accuracy: ±2% within the range of 80% to 99%, ±3% within the range of 70% to 79%, no requirement for accuracy below 70% Discrimination rate: ±1% of blood oxygen saturation Pulse rate measurement range: 30BPM to 240BPM Measurement accuracy: ±1BPM or ±1% of the measured value (take the larger value) Display mode Monochrome 0.96-inch, LED screen display Display mode Two directions Product weight: Net weight: 27g (excluding battery). Weight after packaging in a color box: 50g The scope of application refers to the clip-on pulse oximeter, which is suitable for detection in hospitals, families, schools and physical examination centers. The 112R blood oxygen meter has three parameters: SPO2, PR, and RR 1) Monochrome 0.96-inch, LED screen display 2) The interface can have two different display modes 3) Low battery indicator 4) It has the functions of blood oxygen, pulse, bar chart display and RR respiratory rate 5) The operation menu is convenient for function setting 6) When there is no signal number, the product will automatically shut down after no less than 8 seconds to save power 7) It is small in size, light in weight and convenient to carry when going out Product packaging -1 x Blood oxygen meter - 1 x English User Manual