We take cryptocurrency — so the coins you hold can buy real hardware.Pay in crypto, spend it on real hardware. Free insured shipping worldwide over $399. Plain, unbranded boxes, sent from Germany.Free insured shipping over $399. Your rate is locked for 30 minutes once checkout opens.Rate locked 30 minutes. Every item sealed, serial-checked and covered by a 24-month warranty.Sealed, 24-month warranty.

Saved items Sign in

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.

Highlights

  • 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

Specifications

ModelNew 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.

Also in this aisle

People compared these

Same shelf, same checkout — eight coins and a 30-minute rate lock.