The Omron Contec CMS50N Fingertip Pulse Oximeter is a compact, portable and non-invasive device designed for intermittent spot-checking of blood oxygen saturation (SpO₂), pulse rate, and perfusion index. Its fingertip design makes it convenient for home healthcare, clinical spot-checks, sports activities, and high-altitude use.
The CMS50N features a clear OLED display, automatic screen rotation, adjustable brightness, multiple display modes, an adjustable alarm, and automatic power-off for convenient everyday operation.
✅ Key Features
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SpO₂ Measurement: Measures blood oxygen saturation from 0% to 100%.
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Pulse Rate Measurement: Displays pulse rate during measurement.
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Perfusion Index: Provides an indication of pulse signal/perfusion strength.
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OLED Display: Clear digital OLED screen for easy viewing.
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Adjustable Brightness: Display brightness can be adjusted for viewing convenience.
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Auto-Rotation Screen: Automatically rotates the display orientation.
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Multiple Display Modes: Provides different screen display options.
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Adjustable Alarm: Built-in alarm function with adjustable settings.
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Low Battery Indicator: Alerts the user when battery power is low.
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Automatic Power-Off: Switches off automatically after approximately 5 seconds of inactivity.
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Portable Fingertip Design: Lightweight and convenient for spot-check measurements.
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Battery Powered: Uses 2 standard AAA batteries.
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Adult & Pediatric Use: Designed for adults and pediatric users.
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Non-Invasive Measurement: Measures SpO₂ and pulse rate without requiring blood sampling.
Technical Specifications
| Specification |
Details |
| Brand |
Omron / Contec |
| Model |
CMS50N |
| Device Type |
Fingertip Pulse Oximeter |
| Measurement Type |
Non-Invasive |
| SpO₂ Range |
0–100% |
| Parameters |
SpO₂, Pulse Rate, Perfusion Index |
| Display |
OLED |
| Display Brightness |
Adjustable |
| Screen Orientation |
Auto-Rotation |
| Display Modes |
Multiple |
| Alarm |
Adjustable |
| Low Battery Indicator |
Yes |
| Automatic Power-Off |
Approx. 5 seconds of inactivity |
| Power Supply |
2 × AAA batteries |
| Intended Users |
Adults & Pediatric Users |
| Intended Application |
Intermittent Spot-Checking |
SpO₂ & Pulse Rate Monitoring
The CMS50N provides non-invasive spot measurements of oxygen saturation (SpO₂) and pulse rate through the fingertip.
The displayed SpO₂ value is expressed as a percentage, while the pulse measurement provides information about the user's pulse rate during the measurement.
The device also provides a perfusion index, which can help indicate the strength of the detected pulse signal.
OLED Display & Auto-Rotation
The clear OLED display allows users to easily view measurement information. The screen features adjustable brightness and automatic rotation, making it convenient to view the display from different orientations.
Multiple display modes provide flexibility in how measurement information is presented.
Adjustable Alarm & Indicators
The CMS50N includes an adjustable alarm function and a low-battery indicator.
The alarm can help draw attention to measurements according to the device's configured limits. Users should follow the manufacturer's instructions when setting and interpreting alarm limits.
Product Disclaimer
Specifications and included accessories may vary by production batch, market, or manufacturer revision. Please verify the exact configuration with the seller before purchase. This product information is intended for general product guidance and does not replace professional medical advice, diagnosis, or treatment.
