CMS50EW Fingertip Pulse Oximeter with Alarm/Bluetooth

$59.00 59.00

The CMS50EW Fingertip Pulse Oximeter is a cost-effective medical health device that provides an accurate reading of blood oxygen saturation levels and pulse rate in the body. The oximeter is capable of helping physicians, nurses, patients, athletes, and pilots swiftly obtain SpO2 and pulse rate readings. The wearer’s finger comfortably fits in the device’s padded finger chamber to take a reading. A measurement result is provided in under 30 seconds!

The pulse oximeter features a brightly colored design and small, portable size. The pulse oximeter does not require any external wires or probes when taking measurements. A single button is used for operating the pulse oximeter’s functions. Bluetooth 4.0 connectivity is built-in to the CMS50EW to link to an Android or iOS smart device. A soft carrying case is included for convenient storage.



Powerful technology in the device accurately measures oxygen saturation (SpO2) and pulse rate directly through the finger. An automatic alarm alerts the wearer to the presence of low oxygen levels in the blood. The auditory and visual alarms provide a reliable system for keeping the wearer informed of activity in the body. Additional alarms alert to low voltage and improper placement of the pulse oximeter. A low-profile battery indicator provides a charge status level for the device’s rechargeable battery.

The bright 1.3" OLED screen displays in full color with sharp text and images. The backlit display can be clearly read from up to four different viewing angles. The rechargeable lithium-ion battery replaces the need for traditional batteries that are used in most other pulse oximeters. The battery is charged via the included power adapter or by connecting the unit to a computer. 

The SpO2 and Pulse Rate readings are displayed as a standard value, bar graph, and waveform. All of the display variations are shown on the screen to provide a convenient visual representation of your body’s SpO2 and Pulse Rate levels. The animated images aid in helping  to understand the body’s current health information.

Up to 24 hours worth of measurement data can be easily transferred to a computer using the included software. The software provides an efficient and quickly accessible history of your pulse oximeter’s recorded data. The data can be saved for future reference, or for analysis by a medical professional or physician. 

The CMS50E features many of the same functions that are included on larger and more expensive pulse oximeters. Daily activity tracking, COPD monitoring, sleep studies, home healthcare spot-checking, and medical professional practices are all able to utilize the intelligent health monitoring technology in the CMS50EW. The CMS50EW is a great everyday solution for tracking your body’s health and activity.


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. 3.7V Rechargeable lithium battery (Long Battery Life)
  6. Instruction manual
  7. If ordered, the Wireless Transmitter/Receiver 

Software Download (15.6 MB)


Features List

  • Integrated with SpO2 probe and processing display module
  • Small in volume, light in weight and convenient in carrying
  • Operation of the product is simple ,low power consumption
  • Operation menu for the function setting
  • SPO2 value display
  • Pulse rate value display, bar graph display
  • Pulse waveform display
  • The display mode can be changed
  • Screen brightness can be changed
  • A pulse rate sound indication
  • With measured data overruns limits and low-voltage 
  • alarm function,the upper/down alarm range can be adjustable
  • Battery capacity indication
  • Low-voltage indication: low-voltage indicator appears 
  • before working abnormally which is due to low-voltage,and with alarm function
  • With SpO2 value and pulse rate value of storage, the storage 
  • data can be uploaded to computers
  • Real-time data can be transmitted to computers
  • 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.
  • RF Wireless communication function (option) 
  • (only applied for Ver6.6R or above).
  • Connected with an external oximeter probe (option) 
  • (only applied for Ver6.6R or above).


CMS-50E Product Videos



Extended Specifications

Warranty: 1 Year
SpO2 Range: 0% - 99%
SpO2 Accuracy: 70% - 99%, ±2%, 0 - 69%, unspecified
SpO2 Resolution: 1%
SpO2 Measurement Range: 0% - 100%
Pulse Rate Accuracy: ±2bpm or ±2%
Pulse Rate Resolution: 1bpm
Pulse Rate Measuring Range: 30bpm - 250bpm
Power Supply Requirement: 3.6V DC - 4.2V DC
Battery Type: Interior lithium battery, B F
20 hour working life expected per charge
Charge and discharge no less than 500 times
Operating Temperature: 0°C - 50°C
Storage Temperature: -40°C - 60°C
Operating Humidity: 15% - 95%
Storage Humidity: 5% - 95%
Operating Pressure: 700hPa - 1060hPa
Storage Pressure: 500hPa - 1060hPa
Dimensions: 57 x 32 x 30 mm
Weight: 1.8oz (50g with lithium battery)
Display Type: 1.36" 65k color OLED display
Display Resolution: 128x96
Parameter: SpO2 (2-digit), PR (3-digit)
Bar Graph (6-segment), pleth waveform
Alarm Types: Measurement out of set limits, Low voltage, Finger out of position

CMS-50E Software Download V.2.8.0 (8.9 MB)

CMS-50EW Bluetooth Software Download V.2.8.0 (8.9 MB)

CMS-50E Manual (735 KB)

Customer Reviews

Based on 3 reviews
Larry Olsen

CMS50EW Fingertip Pulse Oximeter with Alarm/Bluetooth

Philip Astrella
Good product, good deal!

Product price was very fair, compared to other sources for the same item. Received the product on-time, in good condition, and it performs as advertised. Very satisfied, and would recommend to all.

Carmen Morales
Good product

Good Product, on time shipping...