Major Features
1)SpO2 value display
2)Pulse rate value display, bar graph display
3)Pulse waveform display
4)The display mode can be changed
5)Screen brightness can be changed
6)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
7)Display format can be saved after power off

Main performance
1) Display Mode:0.96" Color Display(blue and yellow)
2) Screen Resolution:128*64
3) SpO2 Measuring Range:0%～100%, (the resolution is 1%).
Accuracy:70%～100%:±2% ,Below 70% unspecified.
4) PR Measuring Range:30bpm～250bpm, (the resolution is 1bpm)
Accuracy:±2bpm or ±2% (select larger)
5) 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).
6) 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%
7) Power Consumption:less than 30mA
8) Voltage: DC 2.6V - 3.6V
9) Power Supply:1.5V (AAA size) alkaline batteries × 2
10) Battery working hour: Two batteries can work continually for 20 hours,The theoretical number is 36 hours
11) Safety Type:Interior Battery,BF Type

Accessories
1)a hanging rope
2)a user manual

Physical characteristic
Dimension:57(L) × 31(W) × 32(H) mm
Weight:About 50g (with the batteries)