AccuMed CMS-50D1 Fingertip Pulse Oximeter Blood Oxygen Sensor SpO2 for Sports and Aviation. Portable and Lightweight with LED Display, 2 AAA Batteries, Lanyard and Travel Case (White)

UPDATE: Still using this several times a day, and it’s still going strong after over 2.5 years of use. I’ve owned several different pulse/ox devices over the years and I can say that this one is the best of the bunch. I actually came back to Amazon tonight to order a second one so that i’ll have a backup, especially since I’m doing a lot of travel these days, mostly long cruises of at least 21 days. It uses AAA batteries which are easy to find almost everywhere. And it’s not a battery ”hog” -- the first set if batteries lasted about 18 months of daily use, checking my numbers 2 or 3 times a day. AND it’s staying accurate. I’ve taken it to my doctor's office twice a year to compare with my doctor’s pulse/ox and it’s almost always exactly the same or at most 1-2 points lower than my doc’s.It’s still a 5-star item.Original review:This is a newer version of an AccuMed Pulse Oximeter I've been using for several years. It's accurate, easy to set up and use (just put in the batteries), and the lanyard and case make it easy to take along when I exercise or travel. I have severe emphysema, prone to CO2 retention, so it helps to keep tabs on O2 levels when I'm doing anything strenuous so I can take pre-emptive action (specific breathing techniques) before I run into trouble.There are a number of small oximeters on the market and they all operate on similar technology, so it comes down to the quality of the materials used and how it's put together. Some are really junk -- accuracy is whacky, the spring clip gives out, etc. This one is very good quality and built to last. I've been using it for several weeks, usually 2-3 times a day -- more if it's a heavy exercise day -- and I've seen no issues at all.This one's a keeper -- solid 5-stars for accuracy and quality.

I purchased the AccuMed CMS-50D1 Fingertip Pulse Oximeter to help monitor my oxygen levels during the current pandemic. I live alone and it is important to me to be able to maintain awareness of my health situation. When I began to show some symptoms that could be consistent with COVID-19, I was concerned that I could develop breathing problems but did not want to have to go to a healthcare provider unless it was necessary. The CMS-50D1 lets me check my oxygen levels at home and offers reassurance. It is very easy to use and provides quick results. It only takes seconds to clip to a finger and a simple push of button gives you a reading of both oxygen level and pulse. I would recommend it to anyone who has breathing issues, whether from asthma, COPD, or other lung conditions. It is simple enough that anyone can use it. The accuracy also seems to be on spot. I have checked my pulse rate compared to the reading on my Fitibit and the readings are right in line. The unit comes with a nylon storage case, batteries, and a lanyard. The case allows you to store it easily, and the lanyard would be perfect for someone who always needs to keep it close. I am very happy with my purchase!

Works faster then most.

I've had the unit for about 1 week now. Very easy to use. Oxygen & pulse readings are available immediately. Screen, font size & colors are easy to see. The clamp fits my fingers with the right amount of pressure - not too tight or loose, no slippage or movement. I like the case & lanyard for travel.I'm just surprised there was a weight limit shown in the instruction manual for proper readings - 88lbs - 242lbs. I'm a female that weights over 250lbs. There was also a statement about fingers - nothing specific though. Just don't use on thin or cold fingers. No clarification on what thin means. Being a larger person with narrow ankles & feet, wrists & hands, I won't know if my thin fingers or weight affect the accuracy of the readings or not. The product description on Amazon doesn't mention any of this. If they had, wouldn't have bought it.That being said, I don't know how accurate the readings are. Maybe I'll Take it to my next doctor appointment & compare with their readings.

This one is most reliable, accurate oximeter i ever used. I use daily due to my profession. Highly portable, easy to use.

A very nice oximeter. Easy to read also. Have 3 and this one is better by far than any others.

Unit works as expected

My husband needed this after coming home from the hospital. It has been really good for us. Would recommend

Very good product.

This is an excellent tool. I am currently in hospital and can check my oxygen level against the ones they use in hospital. Very good quality I am very pleased with the product.

It has proved very useful as my wife has recently been in hospital after being unable to monitor her oxygen levels more closely

Beautiful plece of equipment and did exactly what its meant to do.

Okay+