CMS50NA Finger Tip Pulse Oximeter — SpO2, Blood Oxygen Monitor & Heart Rate

The CMS50NA Finger Tip Pulse Oximeter is a compact, pocket-friendly device designed to give you quick, dependable readings of your blood oxygen saturation (SpO2) and heart rate. Clip it onto your finger and you’ll see real-time data on a clear display, with additional insights like a pulse rate waveform and bar graph to help you interpret trends at a glance. It’s built for everyday use—whether you’re tracking recovery after activity, monitoring wellness at home, or staying on top of your health while traveling.

Why the CMS50NA stands out

Unlike generic handheld meters, this oximeter combines essential measurements with flexible display options and robust ambient-light performance, so you get consistent results in a variety of environments. Its user-friendly design focuses on clarity and accessibility without compromising accuracy where it matters most for everyday monitoring.

Key features

• Measures SpO2 (blood oxygen saturation) and pulse rate
• Displays SpO2, pulse rate, waveform, and bar graph for quick trend assessment
• Batteries: uses two AAA cells with a battery low indicator to prevent surprises
• Multiple display modes with adjustable screen brightness
• Compact, portable form factor designed for home, travel, or on-the-go use

Technical performance & specifications

• SpO2 measurement range: 0% to 100% — Accuracy: 70%–100% can be ±2%; 0%–69% is unspecified
• Pulse rate (PR) measurement range: 30 bpm to 250 bpm — Accuracy: ±2 bpm or ±2%, whichever is greater
• SpO2 resolution: 1% • PR resolution: 1 bpm
• Weak filling condition: readings remain available at a pulse-filling ratio of 0.4% — SpO2 error ±4%, PR error ±2 bpm or ±2%
• Ambient light resistance: deviation under varied lighting (man-made or natural) is ≤ ±1% compared with darkroom readings
• Power & safety: power supply is two AAA batteries; safety classification BF applied part
• Dimensions: 60 mm (L) × 34 mm (W) × 33 mm (H)
• Language note: GB language support; other languages available on request

Who is this ideal for?

• Home health monitoring for everyday wellness and recovery tracking
• Active individuals and athletes who want quick insights into how training affects oxygenation and heart rate
• Travelers and caregivers needing a portable, reliable way to check respiratory status on the go
• People managing conditions where SpO2 and heart rate are important indicators of well-being

Important safety and interpretation notes

Recent safety communications highlight that SpO2 readings can be influenced by individual factors such as skin pigmentation. The CMS50NA provides baseline readings best interpreted in context with a healthcare professional. If you have concerns about your readings, consult a licensed clinician to interpret results in relation to your physical traits and overall health.

Practical tips for best results

• Ensure the device is snug on the finger and remove any thick nail polish that could interfere with readings
• Keep your hand warm and still during measurement for the most stable values
• Use the adjustable brightness and display mode to suit lighting conditions and visibility preferences
• Compare new readings to established baselines taken at rest for more meaningful trend tracking

With its thoughtful balance of essential metrics, user-friendly display, and reliable performance under varied conditions, the CMS50NA Finger Tip Pulse Oximeter is a practical tool for anyone who wants continuous, real-time insight into SpO2 and heart rate without stepping into a clinic.