The Contec CMS50D Fingertip Pulse Oximeter is a compact device designed to measure blood oxygen saturation (SpO₂) and pulse rate through the fingertip.
It provides numerical SpO₂ and pulse rate readings along with a pulse bar graph and real-time pulse waveform on its display. The device operates using two standard AAA batteries and includes a low-voltage indication and automatic power-off function.
With its lightweight construction and compact dimensions, the CMS50D is designed for convenient fingertip monitoring.
✅ Key Features
- Measures SpO₂ and pulse rate
- Fingertip measurement
- SpO₂ range: 0%–100%
- SpO₂ accuracy: ±2% in the 70%–100% range
- Pulse rate range: 30–250 bpm
- Pulse rate accuracy: ±2 bpm
- OLED/LED display
- SpO₂ value display
- Pulse rate display
- Pulse bar graph
- Real-time pulse waveform
- Low-voltage/battery indication
- Powered by 2 × 1.5V AAA batteries
- Automatic power-off within approximately 5 seconds after finger removal
- Lightweight design of approximately 50 g
- Compact dimensions of approximately 57 × 31 × 32 mm
SpO₂ Measurement
The CMS50D measures blood oxygen saturation (SpO₂) through the fingertip.
SpO₂ range: 0%–100%
Accuracy: ±2% in the 70%–100% range
The measured SpO₂ value is displayed on the device screen.
Pulse Rate Measurement
The device measures and displays pulse rate along with a pulse bar graph and real-time pulse waveform.
Pulse rate range: 30–250 bpm
Accuracy: ±2 bpm
Display
The CMS50D features an OLED/LED screen that displays:
- SpO₂ value
- Pulse rate
- Pulse bar graph
- Real-time pulse waveform
This provides both numerical and visual information during measurement.
Battery Operation
The CMS50D operates using two standard 1.5V AAA batteries.
A low-voltage/battery indication alerts the user when battery power is low.
Automatic Power-Off
To conserve battery power, the device automatically shuts off within approximately 5 seconds when the finger is removed from the probe.
Compact & Lightweight Design
The CMS50D is designed as a portable fingertip device.
Approximate dimensions: 57 × 31 × 32 mm
Approximate weight: 50 g
Technical Specifications
| Specification |
Details |
| Product |
Contec CMS50D Fingertip Pulse Oximeter |
| Measurement |
SpO₂ & Pulse Rate |
| Measurement Method |
Fingertip |
| SpO₂ Range |
0%–100% |
| SpO₂ Accuracy |
±2% in 70%–100% range |
| Pulse Rate Range |
30–250 bpm |
| Pulse Rate Accuracy |
±2 bpm |
| Display |
OLED/LED |
| Pulse Bar Graph |
Yes |
| Pulse Waveform |
Real-time |
| Low-Voltage Indication |
Yes |
| Battery |
2 × 1.5V AAA |
| Auto Power-Off |
Within approximately 5 seconds after finger removal |
| Dimensions |
Approx. 57 × 31 × 32 mm |
| Weight |
Approx. 50 g |
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.
