CMS50D2 Fingertip Pulse Oximeter – SpO₂, Pulse Rate & Perfusion Index Monitor.

The CMS50D2 Pulse Oximeter is a compact and reliable device designed to measure blood oxygen saturation (SpO₂) and pulse rate (PR) through a fingertip. It is suitable for home, clinical, and hospital use, offering quick, accurate, and convenient monitoring of vital signs.

Features

1. SpO2 value display
2. PR value and bar graph display
3. PI value display (Optional)
4. Pulse waveform display
5. Low-battery indication: low-battery indication appears when the battery voltage is too low to work
6. Battery electric power display
7. Automatic standby function
8. Display mode can be changed
9. Adjustable screen brightness  
10. Display direction can be changed automatically
11. PR sound indication (Optional)
12. Voice prompt for over-limit (Optional)
    

Technical Specification

• Display Mode: LCD display
• SpO2 Measuring Range：0%～100%, (the resolution is 1%).
• Accuracy：70%～100%：±2%, Below 70% unspecified.
• PR Measuring Range：30 bpm～250 bpm, (the resolution is 1 bpm)
• Accuracy：±2 bpm or ±2% (select larger)
• PI Measuring Range: 0 %~ 20％
• Accuracy: When the PI measure range is 1%~20%, the permission of absolute error is ±1%
• When the PI measure range is 0%~0.9%, the permission of absolute error is ±0.2%
• 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：≤30mA (without prompt sound) ；≤80mA (with prompt sound)
• Voltage: DC 2.6 V - 3.6 V
• Working time for battery: The device can continuously work for 20 hours when it was powered by two new batteries within the warranty period.
  10) Safety Type: Interior Battery,BF Type
• Physical characteristic
• Dimensions：60(L) mm × 32.5(W) mm × 30.5 (H) mm
• Weight: -About 50g (with the batteries)