Wristband Pulse Oximeter CMS-50F with software

Availability: In Stock


Quick Overview

FDA approved Wristband Pulse Oximeter CMS-50F with Soft Finger Sensor, Velcro Wrist Strap, Rechargeable Lithium Battery, USB Cable, AC Charger, Alarms, Pulse Tone, Trend Software CD-ROM

Note: If one or more of the items you purchase requires a prescription, please send us the documentation as soon as possible. (more info)


Package Contents
  • 1x CMS-50F Wristband Pulse Oximeter
  • 1x Wristband
  • 1x Instruction manual
  • 1x 3.7V Rechargeable lithium battery (Super long battery life)
  • 1x Power adapter
  • 1x Data cable
  • 1x Software CD (for Windows XP/2000/Win7 and Vista)
  • 1x Soft Fingertip SpO2 Probe Sensor


Designed for daily activities monitoring and overnight sleep studies, The CMS-50F Wristband Pulse Oximeter with comfortable soft spo2 probe is suitable for family, hospital, oxygen bar, community healthcare, physical care for athletes and sports enthusiasts. The product is available for both infants and adults, depending on the type of probe used. Featuring a large high-contrast OLED display which allows you to read  in the dark and during severe weather conditions, the CMS-50F Wristband Pulse Oximeter provides fast real-time and accurate reading including SpO2, Pulse Rate, bar graph indicating pulse intensity and pulse waveform. The unit is very light and easy to carry. One-button operation makes it easy to use. 

FDA approved CMS-50F features alarms (auditory and visual) when the finger is out of position, when the voltage is low, when it measures a reading beyond set limits, and even when the probe becomes detached. Several display modes and adjustable screen brightness levels allow patients and doctors to see the readings more comfortably and conveniently. 

One of major innovation here for the CMS-50F is the lithium-ion rechargeable battery. With a much longer lifespan than an Alkaline battery, and taking less space, this Wristband Pulse oximeter represents the pinnacle in minituarization for this type of technology. The CMS-50F has the ability to store data for a continuous 24 hours, including both measured pulse rate value and SpO2 value. Readings can be uploaded to you computer easily using the included SpO2 management software and data cable that is included in the package. The data can also be displayed and printed for reference and analysis by a medical professional or physician.

The device charges when connected to the computer via data cable with a USB port or connected to the power supply via power adaptor (included). The CMS-50F is connected with an external oximeter probe, either adult or infant probe, via a probe jack.


  • Comfortable soft finger tip probe is ideal for daily activities and overnight sleep studies
  • Oxyhemoglobin and pulse value can be shown correctly when pulse-filling rate is 0.4%.
  • Deviation is less than ±1% between value of oxyhemoglobin measured in natural lighting indoor condition and present lighting sources and that measured in dark room.
  • Powerful lithium rechargeable battery with wall charger or by a computer.
  • Spo2 management software to upload and analyze up to 24 hours of data at a time.
  • Large Multicolor/Multi-directional OLED Display.
  • 4 parameters reading(SpO2,PR,Bar graph, Pulse waveform).
  • Fast, accurate, continuous readings.
  • Alarms (auditory and visual) when pulse rate or SpO2 falls bellow set levels, low voltage, finger out or probe falls.
  • Ultra-lightweight(1.8oz or  50g with lithium battory).
  • One-button operation.
  • Clock
  • Easy to carry: wristband.


Extended Specifications

  • SPO2 - Digital
    Range: 0%-99%
    Accuracy:±2% (70-99%)
    0--69%, unspecified
  • Pulse Rate 
    Range: 30bpm-250bpm
    Resolution: 1bpm
    Accuracy: ±2bpm or ±2%
  • Measurement Performance in low perfusion
    Oxyhemoglobin and Pulse value can be shown accurately when pulse-filling rate is 0.4%
  • Power supply
    Requirement:3.6V DC-4.2V DC  
  • Battery
    Type: Interior battery, BF 
    Requirement:3.7 voltage rechargeable lithium battery(included)  
  • Warranty 
    1-year limited manufacturer warranty
  • Interference Resistance Capacity Against Ambient Light
    Deviation is smaller than ±1% between value of Oxyhemoglobin measured in natural lighting indoor condition and present lighting sources and that measured in dark room.
  • Environmental
    Operating Temperature: 10°C-40°C
    Storage Temperature: -40°C- +60°C
    Operating humidity: 30%RH-75%RH
    Storage Humidity:5%RH-95%RH 
    Operating Pressure:700hPa – 1060hPa
    Storage Pressure: 500hPa – 1060hPa
  • Dimensions
    Size:61*56*24 mm
    Weight:1.8oz((50g with lithium battery)
  • Display
    Type: OLED
    Parameter: SpO2(2-digit), PR(3-digit), 
    bar graph, Pleth waveform
    Adjustable brightness level
  • Alarm:
    Types: Measurement out of set limits 
    Low voltage 
    Finger out of position 
    Probe off

Please note that your doctor or healthcare provider is the best source for your treatment plan. This unit is not intended to replace a doctor's visit and self diagnostics.


Customer Reviews

9 Item(s)

per page
I have used the Pulse Oximeter a few times and like it. Review by james kough
I have used the Pulse Oximeter a few times and like it. I do have some concern about the batter life since it acts up some times and there is no change in pulse rate or % for a long time. I find the battery icon hard to read but other than that I think I have figured out how to adjust the various screens. (Posted on 6/27/2019)
Quite impressed! Review by Sharon Krahn
I am currently in pulmonary rehab and rather than the nurses checking every so often for an oxygen check I have my readings at all time. The nurses were also quite impressed and asked for the info of where and how much I paid.
I'm going to pulmonary rehab a couple of times a week and can automatically check my levels while working out instead of waiting for the nurses to come around. In addition, the nurses have asked for info on where and how much and I provided them with the info. (Posted on 6/27/2019)
wonderful Review by Donald Gabie
wondrful (Posted on 6/27/2019)
I am more than happy with product and service Review by les hindle
I am more than happy with product and service i would recommend you to friends and relations and i will use you again ,
thanks les(sleep apnea) (Posted on 6/27/2019)
All in all a good experience. Review by Michael DuPas
Great device to give me a confirmation that my CPAP therapy is working. It correlates well with the AHI from the CPAP machine. Service seas also patient and helpful. All in all a good experience. (Posted on 6/27/2019)
I'm very satisfied with my Pulse Oximeter. Review by Eddy Keuninckx
I'm very satisfied with my Pulse Oximeter.
I've been to the sleep clinic to get a CPAP, but before that, I made some measurements with this Pulse Oximeter. Later, I made some other measurements while using the CPAP so I was able to compare before/after CPAP.
The measurements were in line with those measured at the hospital, so this device is accurate.
The reports are very good and I even take them with me to the doctor. (Posted on 6/27/2019)
The device itself is very good. Review by Lloyd Langley
Wrist Watch Finger Pulse Oximeter CMS50FW Bluetooth Wireless
The device itself is very good. I do recommend it whole heartedly. Any comment I make here is to help make it even better and allow your preparation. If you are going to use this for a child, you need to arrange an alternative strap as the one it comes with is too big for a child. The finger sensor has a strong spring and does clamp a bit too hard; I used a little bit of velcro around the lever to relieve the pressure a bit. Please don't let my comments put you off. As for Pulse-Oximeters-Direct... excellent! The cheapest price by miles and a personal call from the USA to let me know they would send the bluetooth adapter (for your PC) when in stock (which it did two days later). Allround very pleased but a little worried as it now proves my 4½ daughter has sleep apnoea with documented evidence! (Posted on 6/27/2019)
will buy again and tell others Review by philip przybyla
product was as stated great service ease of use product information good will buy again and tell others (Posted on 6/27/2019)
Works well, wish finger portion was of harder plastic Review by Exercise oximeter
Love this oximeter. Does a decent job while I am exercising. Only down fall is finger gets sweaty and reading stops. You have to stop and switch fingers. Wish it was more like a regular oximeter or the hand held version. (Posted on 10/13/2016)

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