WelluePulse Oximeter Fingertip Blood Oxygen Saturation Heart Rate Monitor with Batteries and Lanyard Bluetooth FS20F White

Trying to give you a five stars the first one would not light up though the product is great thank you

Works like it should.

My odometer works great. It gives me my oxygen levels as well as my heart rate. Just stick your finger inside the odometer push button on and you see the results right away.

The instrument appears worth the low price. I have not be able to check all the software features. I just downloaded. the support software from Google.Read the warnings on its use regarding infr red light and wear time. I am not sure that these warnings are unique to this instrument and may apply to similar products.The product was ordered 3/12 with next day arrival mention the Amazon discription., however it was not received until 3/15.The product gives similar results but not exactly the same results of my old instrument, But my old instrument was about 5 years old. I am satisfied with my purchase. I will keep the instrument for general use but may look for something else due to my unique situation to measure over extended periods of time.

I use this often. Very durable as well as easy to use. Love these app as well as the accuracy it provides. If you have any lung issues, buy one! You will be glad you did.

Works well. Connects easily.

Came with batteries and a strap. But, the pulse oximeter doesn't work consistently. My pulse read 91, 94, and 25 in three tries within 15 minutes. I had expected that the oxygen measurement would change with deep breathing, the way it does with the oximeter in the doctor's office. But, it did not. I'm returning this because I cannot trust the measurements.

I have sleep apnea. A sleep test will cost on the order of $250 each. One of the most important pieces of data a sleep study tests for are your levels of blood oxygen (SpO2). I used this pulse oximeter, along with the free app I downloaded on phone to graph my blood oxygen while sleeping. I discovered what no pulmonologist ever told me. My sleep apnea is NOT caused by any blockage in my throat from the tongue pushing back during sleep. Which is the most common cause of sleep apnea, and the default answer of many doctors. Rather, I discovered my sleep apnea is caused by "shallow breathing".See I also have inflamed vocal cords called Vocal Cord Dysfunction bought on by acid reflux. Since air has to pass through the vocal cords, the difficulty becomes greater while sleeping. I figured this out by experimenting with different sleep apnea hardware, then taking an overnight pulse oximeter test. I found it odd that wearing mouth guards with tongue depressors (keep tongue from falling back) did not help my SpO2 reading much at all. It was still below 90 pct for up to 30 minutes a night. Ideally you want all your sleep time above 90pct. Also, my overnight sleep apnea test from clinic, and snore noise test revealed I had very little snoring which indicates the tongue is likely not blocking the airway. The CPAP machine never worked for me because my inflamed vocal cords caused pushback from the airflow and I would wake up in the morning feeling nauseous. Plus, CPAP machines are just hard to get used to-period.I found a study on oxygen concentrators that made me want to give those a try. These machines give you a flow of concentrated oxygen. The amount of airflow is very mild and not even noticeable. I tried different settings, and for me I like 2 liters per minute(note average person breathes 7 liters a minute). At the 2 liter setting I am getting 75pct oxygen (compared to 21pct oxygen that normal room air has). In oxygen therapy more airflow is not necessarily better.This oxygen rich therapy while using a nose cannula, along with wearing a chinstrap to keep my mouth closed so I breathe in and out my nose only at night, to ensure I was getting the oxygen therapy. My sleep readings now are like a straight line graph of 95 pct SpO2. I never achieved this level, ever! All night it only dipped to below 90pct for 2 seconds which is well within a normal range.Hope this helps.