Santamedical Dual Color OLED Pulse Oximeter Fingertip, Blood Oxygen Saturation Monitor (SpO2) with Case, Batteries and Lanyard

This oximeter works perfectly! I have breathing problems and need to check my oxygen level frequently. I carry this oximeter in my purse at all times. The size is perfect and the numbers are so easy to read. I love it!

Arrived well packaged with good instructions and batteries. Nice sleek design with a silicon protective cover. Read out is clear and quick. Good price for well made product.

very reasonable, works great! Of course it is Chinese made. I should assume that of course

Directions of use and assembly are not clear either from the words used or pictures.1. Battery direction - very hard to see plus or minus and it would be easy to indicate in a picture where to look2. Direction of finger - again would be easy show whether it’s palm up or palm down. Or write it in a way that’s obvious. I had to go on Youtube to be sure.3. Turning it on - no instruction to do that. Easy to figure out but why not include that.4. When results are final - writing is misleading. Picture looks like I’m waiting for the bar to stop moving. I think you mean to say it’s done within 30 seconds. So just say - results are final at 30 seconds-there is no beep or freezing of info.5. Biggest is that there is no place to find out what the results mean. What’s normal? Again, I have to google and visit various sites to know what’s average. And I’ll likely have to google each time as I’ll forget the next time I use it. Why not include it in instructions?6. Identify - what Sp02 means - say “oxygen level”.7. Identify what PR means - say “pulse rate”.8. Identify what pi means - I still can’t find out why this is important and what it means.

Ok, I want to first want to preface this by saying that I’m a medical doctor, so I do know a thing about pulse oximeters—both in theory and in practice. I noticed the top review has a picture of the pulse ox on a stuffed animal, showing at 99%, as “proof” it is inaccurate equipment.There are a number of problems with this supposition, and it shows a basic lack of understanding of how pulse oxes work. They are equipment that are designed to measure something specific under specific circumstances of being clipped to a fingernail with no opaque polish. NOT inanimate objects like markers and stuffed animals.A pulse ox works by shooting red light across the width of one of the middle fingers. Since tissues are translucent rather than totally opaque, the amount of light that is measured at the receiving sensor measures the proportionality of absorbed red light, which equals the proportion of material that absorbs it. This is called Beer’s Law. Pulse oxes are also governed by another law called Lambert’s Law, which says the amount of light absorbed is proportional to the length of the path that the light has to travel in the absorbing substance. The third law has to do with the fact that oxygenated hemoglobin (which in itself is red) absorbs more light than deoxygenated hemoglobin. This is due to the difference in wavelengths of red and blue light (red objects absorb more red light than blue objects). This is also why the test is not accurate if you have red nail polish on or your finger is not centered and light can move around it (or if you use a tiny pinky finger, for example). You can now see why it’s totally irrelevant how using a pulse ox on an inanimate object (especially, a bright red felt tail!) with totally different properties than an index finger is not a good way to judge accuracy. That’s like saying that your kitchen scale did not work well because you threw it in a swimming pool to measure the weight of the water. Equipment is only designed to work under particular circumstances and limitations.Anyway, I purchased this pulse ox for my father. He has COPD and a bunch of other risk factors for COVID-19, so I appreciate having a heads up if his oxygen sats dip. This is a good vital sign early marker for covid because it is an unusual disease, in that it causes what doctors have nicknamed “happy hypoxia”. You can google this to find out more, but it basically means that in other pneumonias that devolve rapidly into hypoxic conditions that require ventilation, their symptoms also crash, to the point where they lose consciousness or can barely talk. Covid-19 is more insidious and can creep up on some patients, who might be sitting up in bed (yes, symptomatic, but still conscious and talking), fooling even medical professionals into thinking their cases were not too serious until it was too late. This is the reason medical professionals find pulse oxes to be useful—they measure signs of disease (objective results from testing) rather than symptoms (subjective reports of feelings from patients). It gives me peace of mind to know my father has this and can measure it daily when he does his insulin shots and measures BP. He has chronic bronchitis, diabetes, stroke history, high blood pressure, obesity, and he is nearly 80, so he’s definitely in that very high risk category.On the actual unit, it was extremely easy to set up and use. You press a button and it turns on (once you put the batteries in the right way, lol); turns off automatically. I didn’t find anything inaccurate about it... and the hardest part of it was probably getting the lanyard in, haha (I advise using a needle to get the other end out of the hole; there’s no way a senior citizen could do this alone, so please help them). I’ve used many pulse oxes in my day. The professional ones in the hospitals are about 1% more accurate than these little portable, cheap pieces of equipment that you can buy for the home. I highly recommend them for any patients or elderly who have risk factors or disease comorbidities (especially, pulmonary). These little portable ones were sold out for months during the pandemic first peak (even hospital staff had trouble getting their hands on privately sold ones), so I’m glad to have one now.

This was purchased because I had my aorta replaced. Works well. Comes with a protective cover and a lanyard.

very accurate, i carry this in my purse to check my oxy levels as i have COPD.

Super Exellent! Thank U!