Finger Pulse Oximeter Blood Oxygen Meter SpO2 Heart Rate Monitor


1. Introduction

CMS50N Pulse Oximeter is a portable equipment adopting advanced technology, it mainly checks SpO2 and PR value through the finger, which provides advanced, non-invasive, and scientific means for quantitative measurement of oxygen saturation. 

CMS50N Pulse Oximeter is applicable for use in plateau areas, community healthcare, oxygen bar, Fitness clubs, physical training room, family and medical institutions, etc. 

2. Features

1) Can measure SpO2 and Pulse Rate accurately

2) SpO2 and Pulse Rate display, Pulse Rate waveform, and bar graph display 

3) Battery voltage low indication

4) The display mode can be changed.

5) Screen brightness adjustable

3. Performance

SpO2 measurement range: 0%~100%

Accuracy: 70%~100%: ±2%

 0%~69%: unspecified

PR measurement range: 30bpm~250bpm

Accuracy: ±2bpm or ±2%, whichever is greater.


SpO2: 1% 

PR: 1bpm

Measurement Performance in Weak Filling Condition: SpO2 and pulse rate can be shown correctly when the pulse-filling ratio is 0.4%. SpO2 error is ±4%, pulse rate error is ±2 bpm or ±2%, whichever is greater.

Resistance to surrounding light: The deviation between the value measured in the condition 

of man-made light or indoor natural light and that of the darkroom is less than ±1%.

Working current: ≤30mA

Power supply: two “AAA” batteries

Safety classification: type BF applied part

4. Physical characteristic


Dimension: 57mm(L) × 34mm(W) × 31mm(H)

Note: Battery not include