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Small white fingertip pulse oximeter with display and lanyard

CONTEC MEDICAL SYSTEMS CO.,LTD

CONTEC MEDICAL SYSTEMS CO.,LTD CMS50M Pulse Oximeter

SKU CH-MFJ5-3J7ZH

Measures blood oxygen saturation and pulse rate through the finger with a range of 70% to 100% SpO2 and 30 to 250 bpm

  • Measures SpO2 from 70% to 100% with ±2% accuracy
  • Tracks pulse rate from 30 to 250 bpm with ±2 bpm or ±2% precision
  • Works reliably even with weak pulse filling down to 0.4% ratio
  • Auto-shutdown when no signal detected saves battery life
  • Low-battery indicator alerts you before power runs out

Portable SpO2 and pulse-rate monitor

The CMS50M Pulse Oximeter is a portable device that measures blood oxygen saturation and pulse rate through the fingertip. It provides a non-invasive method for quantitative SpO2 and PR readings in settings such as community healthcare, fitness clubs or home use. The unit displays both values alongside a bar graph and includes low-battery indication. It powers off automatically when no signal is detected.

Upgrade from basic spot-check tools

This oximeter replaces simple visual checks or single-parameter devices by delivering simultaneous SpO2 and pulse-rate data with defined accuracy bands. The jump is worth it when you need documented readings across a 70% to 100% SpO2 range with ±2% accuracy and a 30 to 250 bpm pulse range with ±2 bpm or ±2% precision. Resolution is 1% for SpO2 and 1 bpm for pulse rate.

Suited for personal and professional spot monitoring

The meter suits individuals tracking oxygen levels during exercise, at altitude or in clinical environments where quick, non-invasive checks are required. It is not intended for continuous diagnostic monitoring or for users who require unspecified accuracy below 70% SpO2. Buyers needing alarm functions, data logging or clinical-grade validation should look at dedicated patient monitors.

How it compares

Measured against everything we stock in Blood Pressure Cuffs & BP Monitors, at today’s prices. Recalculated every night.

Price $13.99
Cheaper than about 95% of the 211 comparable items (median $39.99).

Specifications

Product
Model nameNew cargo machine Without Pouch

Questions about this item

What finger size does the CMS50M pulse oximeter accommodate?

The CMS50M clips onto a fingertip for SpO2 and pulse-rate measurement; no specific finger-size range is stated in the specifications.

How do I start a reading on the CMS50M, and what common step causes it to shut off?

Insert a finger into the sensor, wait for the SpO2 and pulse-rate values to appear on the display, and keep the finger still; the unit powers off automatically when no signal is detected.

When will the CMS50M need new batteries, and how will I know?

A low-battery indicator appears on the display when voltage drops; replace the two AAA cells at that point to maintain the stated ±2 % SpO2 and ±2 bpm pulse-rate accuracy.

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