CMS50EW Fingertip Pulse Oximeter with Alarm/Bluetooth

Fingertip Pulse Oximeter Model CMS50EW is designed to provide an affordable yet accurate way for spot-checking blood oxygen saturation levels and pulse rate. This oximeter helps physicians, nurses, patients, athletes, and pilots to obtain accurate oxygen saturation readings very quickly. Brightly colored and small in size, this oximeter is easy to locate and carry around in its soft carrying case. One button function allows for simple operation. This unit supports Bluetooth 4.0 for both Android and IOS, iPhone, iPod touch or iPad.

The CMS50E is a rechargeable pulse oximeter that features next generation design built to last with powerful technology to accurately measure oxygen saturation (SpO2) and pulse rate through your finger. With a built in alarm, you never need to worry about your oxygen falling without realizing it. The 50E includes both auditory and visual alarms to alert the user if the oximeter falls outside of the set limits programmed by the user, as well as alerting the user if the unit's voltage is low or if the unit is not correctly placed for proper measurement. 

The bright, multicolor display makes reading your SpO2 an easy and enjoyable experience. The oximeter's next generation display allows you to see your readings in 4 different directions. Additionally, the 50E comes with a rechargable lithium-ion battery, doing away with the need of constantly replacing batteries that is typical in other units. The device charges when connected to a computer or connected to the power supply via power adapter. 

The CMS 50E has the ability to store 24 hours worth of data, and readings can be uploaded to a computer easily using the free software that is included with the device. Measurements can then be analyzed with the help of a medical professional or physician. 

With the same size as a regular finger pulse oximeter, CMS 50E provides many features that are only available for expensive hand held unit. It is ideal for COPD monitoring, sleep study, home healthcare spot-checking, and medical professional daily practice. 

Three Different Models

  1. - CMS50EW: With Bluetooth
  2. - CMS50E: With Wireless Transmitter & Receiver
  3. - CMS50E Basic: No Wireless Transmitter, Receiver or Bluetooth

Package Includes

  1. CMS-50E Unit
  2. Neck/wrist Cord
  3. DC Power Adapter Plug
  4. USB Connector Cord
  5. PC Software Disk
  6. 3.7V Rechargeable lithium battery (Long Battery Life)
  7. Instruction manual
  8. If ordered, the Wireless Transmitter/Receiver 


  1. Integrated with SpO2 probe and processing display module
  2. Small in volume,light in weight and convenient in carrying
  3. Operation of the product is simple ,low power consumption
  4. Operation menu for the function setting
  5. SPO2 value display
  6. Pulse rate value display, bar graph display
  7. Pulse waveform display
  8. The display mode can be changed
  9. Screen brightness can be changed
  10. A pulse rate sound indication
  11. With measured data overruns limits and low-voltage 
    alarm function,the upper/down alarm range can be adjustable
  12. Battery capacity indication
  13. Low-voltage indication: low-voltage indicator appears 
    before working abnormally which is due to low-voltage,and with alarm function
  14. With SpO2 value and pulse rate value of storage, the storage 
    data can be uploaded to computers
  15. Real-time data can be transmitted to computers
  16. Automatically power off function: when the device is under 
    the state of measuring interface . It will automatically power off within 
    5 seconds if the finger falls out of probe.
  17. RF Wireless communication function (option) 
    (only applied for Ver6.6R or above).
  18. Connected with an external oximeter probe (option) 
    (only applied for Ver6.6R or above).


CMS-50E Product Videos






Extended Specifications

    1. Warranty: 1 year
    2. USB cable to sync with PC based software
    3. Stores up to 24 hours of measurements
    4. FDA Approved
    5. Alarm functions
    6. 1.36" 65k color OLED display
    7. Screen Resolution: 128 x 96
    8. SpO2 measurement range: 0% - 100%
    9. SpO2 accuracy: 70% - 100%: +/-2%; 0% - 70% unspecified
    10. Pulse rate measuring range: 30bpm-250bpm
    11. Pulse rate accuracy: +/-2bpm or +/-2% (larger of the two)
    12. Resolution: 1% SpO2 and 1bpm pulse rate
    13. 3.7v Rechargeable Lithium (Li) battery - Included
    14. Recharge via USB connection to PC or 120v wall outlet
    15. 20 hour working life expected per charge
    16. Charge and discharge no less than 500 times
    17. Size: 57mm x 32mm x 30mm (2.24" x 1.26" x 1.18")
    1. SPO2
    2. - Range: 0% - 99%
    3. - Accuracy: 70% - 99%, +/-2%, 0 - 69%, unspecified
    4. - Resolution: 1%
    1. Pulse Rate
    2. - Range: 30bpm - 240bpm
    3. - Accuracy: +/-2bpm or +/-2%
    4. - Resolution: 1bpm
    1. Power Supply
    2. - Requirement: 3.6 V DC- 4.2V DC
    3. - Battery Type: Interior battery, B F
    4. - Requirement: 3.7 Voltage rechargeable
    5. - Lithium battery (included)
    6. - Automatic power-off after 5 seconds
  1. Environmental
  2. Operating Temperature: 0C - 50C
  3. Storage Temperature: -40C - 60C
  4. Operating Humidity: 15% - 95%
  5. Storage Humidity: 5% - 95%
  6. Operating Pressure: 700hPa - 1060hPa
  7. Storage Pressure: 500hPa - 1060hPa
  8. Dimensions
  9. Size: 57 x 32 x 30 mm
  10. Weight: 1.8oz (50g with lithium battery)
  11. Display
  12. Type:OLED
  13. Parameter: SpO2 (2-digit), PR (3-digit)
  14. Bar Graph (6-segment), pleth waveform
  15. Adjustable brightness level
  16. Alarms
  17. Types: Measurement out of set limits
  18. Low voltage
  19. Finger out of position

CMS-50E Software Download V.2.8.0

CMS-50EW Bluetooth Software Download V.2.8.0

CMS-50E Manual


Customer Reviews

Based on 2 reviews
Good product, good deal!
Good product