The CMS 50D Plus Pulse Oximeter is also referred to as:

CMS50d Plus, CMS 50d Plus, CMS-50d Plus

The CMS 50D Plus is FDA approved (FDA K Number is K082641) and has received CE marking.

This item is no longer available.

Note on the 2-year warranty and software technical support: the warranty does not cover any problems you may encounter with the included software, including installation problems or usage problems. Because computer configurations differ greatly, sofware compatibility problems may exist on some computer systems. These types of issues are unrelated to the oximeter device and are therefore not covered by the warranty. Please contact the manufacturer directly if you encounter any software-related problems or if you need technical support related to using the software.

Read our article on pulse oximeters to learn more about oximeters and oximeter software.

Need to run the oximeter software on a Mac? Check out this video that shows you how to install Windows 7 on your Mac running OS X Snow Leopard.

The CMS 50D Plus pulse oximeter is a versatile health-monitoring tool which includes everything you need to connect to your computer to see detailed oximetry reports. You can wear the pulse oximeter during naps or all night long with or without your CPAP machine to get detailed oximetry readings. The built-in flash memory will record up to 24 hours of data. Just plug your oximeter into your computer with the included USB cable and you'll be able to create a report with the included software. You can also use the CMS 50D Plus pulseox for instantaneous spot-checks of your pulse and oxygen saturation (that is, you don't need to wear it for extended sleep sessions for it to be useful).

The CMS 50D Plus pulse oximeter is a full featured fingertip pulse oximeter that is perfect for CPAP users who want to monitor their pulse and oxygen saturation periodically during the night. This type of oximeter can help you as a CPAP user determine the effectiveness of your current CPAP pressure. With 24 hours of data storage, software, USB cable, carrying case, and 24 month warranty, the 50D Plus is a great way to take control of your CPAP therapy and your health.

The CMS 50D Plus pulse oximeter features an easy-to-read color, multi-direction OLED (organic light emitting diode) screen. The display can be adjusted to be readable either horizontally or vertically. The display shows pulse rate, blood oxygen saturation, pulse waveform, pulse bar graph, and battery level indicator. The 50D Plus can sound an alarm in the following scenarios:

• when the pulse rate or oxygen saturation drops below a pre-set level
• when the oximeter unit isn't correctly positioned on the finger
• when the battery level is low

What's the key difference between the CMS-50D Plus and the next model up?
The CMS-50D Plus is the most advanced pulse oximeter available for under $100. The primary difference between the CMS-50D Plus featured here and the 50E model is that the 50E pulseox has a rechargeable lithium battery (compared to the regular alkaline batteries used in the 50D Plus). Also, the CMS50E allows the user to enter the time for recording purposes. The CMS50D Plus does not allow the user to enter the time of day.

What's the key difference between the CMS50D Plus and the next model down?
The CMS50D Plus features built-in flash memory, USB port and software. The next model down is the 50D which does not record data and which does not support computer connectivity.

What else is the CMS 50D Plus pulse oximeter good for?
Besides being an exceptional instrument for CPAP users, the CMS 50D Plus pulse oximeter is useful in sleep studies, personal health spot-checking, diabetes management, athletics, and in primary care treatment. The CMS 50D Plus pulseox is also an excellent tool for climbers, skiers, pilots and anyone else at high altitude or where hypoxia is a concern. For example, a pilot in a small aircraft can set an alarm for the oxygen saturation level so that the CMS 50D Plus can alert the pilot to the potential of hypoxia caused altitude.

I've seen fingertip pulse oximeters that cost a lot more, but that don't have the features of the CMS 50D Plus. What's the deal?
We've seen those same expensive oximeters! In fact we've seen fingertip oximeters from certain manufacturers that retail for nearly $400 that offer the functionality of our least expensive, most basic pulse oximeters that retail for around $40. The bottom line is that our pulse oximeters are packed with features and are among the most reliable pulse oximeters in the industry. They're backed by a 2-year warranty.

I've heard the term PulseOx or Pulse Ox before. Is a PulseOx or Pulse Ox the same as a pulse oximeter?
Yes, the terms PulseOx and Pulse Ox are abbreviations for pulse oximeter.

What's in the Box? 1 x CMS 50D Plus Fingertip Pulse Oximeter 1 x Lanyard 1 x USB Cable 1 x PC Software Disc 1 x Carrying Case 1 x User Manual

• Integrated with SPO2 probe and processing display module
• Can be used in: hospital, home, community medical treatment, sports healthcare, etc.
• Can measure SPO2 and PR accurately
• SPO2 and PR display, PR waveform and bargraph display
• Battery voltage indicator
• Friendly Operation Menu for The Function Setting
• 4 Direction Display
• Four levels adjustable brightness
• Can store data
• USB interface to Computer, software can analyse, store and print the data.
• Takes 2 AAA alkaline batteries
• Low power consumption; shut off automatically when no signal
• Small volume(57(L) x 32(W) x 30(H) mm), light, convenient to carry

• 1.3" 65K Color OLED display, resolution 160*128
• SPO2: 35-99% Pulse Ratio 30 - 250BPM
• Resolution: 1% for SPO2, 1BPM for pulse ratio
• Accuracy: +/-2% (70-99%), unspecified (<70%) for SPO2, +/-2BPM or +/-2% (select larger) for pulse ratio
• Power: 2 x AAA alkaline batteries (not included)
• Can work more than 30 hours continuously
• Interference resistance capacity against ambient light and measurement performance at low perfusion