Major Features ■Integrated with SpO2 probe and processing display module ■Small in volume,light in weight and convenient in carrying ■Operation of the product is simple ,low power consumption ■SpO2 value display ■Pulse rate value display, bar graph display ■Low-voltage indication: low-voltage indicator appears before working abnormally which is due to low-voltage ■Automatically power off function: when the device is under the state of measuring interface . it will automatically power off within 5 seconds if the finger falls out of probe Main performance Display Mode: Segment LCD display SpO2 Measuring Range: 0%~100%, (the resolution is 1%). Accuracy: 70%~100%: ±2% ,Below 70% unspecified. PR Measuring Range: 30bpm~250bpm, (the resolution is 1bpm) Accuracy: ±2bpm or ±2% (select larger) Measurement Performance in Weak Filling Condition: SpO2 and pulse rate can be shown correctly when pulse-filling ratio is 0.4%. SpO2 error is ±4%, pulse rate error is ±2 bpm or ±2% (select larger). Resistance to Surrounding Light: The deviation between the value measured in the condition of man-made light or indoor natural light and that of darkroom is less than ±1%. Power Consumption: less than 20mA Voltage: DC 3.0V Power Supply: 1.5V (AAA size) alkaline batteries × 2 Battery Working Hour: The minimum continually work time is 30 hours,theoretical number is 42 hours. Safety Type:Interior Battery, BF Type Accessories Sell in standard: ■A hanging rope ■A user manual Physical Identity Dimension: 66(L) × 36(W) × 33(H) mm Weight: About 50g (with the batteries) Qualification Passed CE