Concord BlackOX Deluxe

I'll start by saying I've no idea how accurate this oximeter is, but all the recommendations I've read say it's best to use them to watch for something unusual rather than as an absolute measure. The normal range is 95-100, so if it normally shows 97, & then drops to 87, call the ER. We got it because of COVID-19, and all the reports of people being unaware that their levels were in the 50s, which the docs say is almost unheard of.The device itself seems well made, and comes with a silicone sleeve sort of case you leave on to protect it. There's also a fabric case with a belt loop, and they include batteries & a couple of lanyards.

Ordered this to replace one I had several years back. Using it currently to determine increase in heart beat and lowered pulse ox to test for allergens. Seems to be quite accurate. Nice case and nice little rubber covering on the unit itself which is easily removed. Registers fairly quickly, easy to read large numbers. Depending on the finger you use it on you can change the direction of the readout, upside down for someone on the other side etc. I can read it without my glasses. Came with 2 lanyards, one for the unit itself and one for the case. I am using both carrying it in my purse and attaching the lanyard to my purse to prevent it from getting lost and the lanyard on the unit to keep around my neck in the event I need to recheck after a few minutes. That helps me remember to do a second check. Glad I made this purchase . Not for wearing overnight and no alarm - I did not need those features.

I have serious lung issues. I have this unit and 5 more. One of which is a Nonin pulse oximeter, the gold standard in pulse oximeters. It's the one pulmonologists use. It cost $350. I've never had any reason to question it's accuracy, still I've sent it back to the factory for recalibration a couple of times just to be sure. I use it to check the accuracy of the cheap ones. Amazingly out of the 6 cheap ones I've bought here that rated high only one did not agree with the Nonin. I threw it away. This unit gives accurate readings and I use it when away from the house to avoid damaging the expensive one.

I really bought this for a relative who was diagnosed with acute myeloid leukemia who had to be on oxygen but no other treatment because the doctors said the prognosis was very poor due to age and health. Unfortunately it arrived after my relative died but since I occasionally have tachycardia I decided to keep it. It seems to work well on me (BP seems accurate since whenever I feel my heart beating faster it shows it up) and on other relatives I tried it on.

A great product to have at home for testing oxygen levels. As my doctors say "You're at that age" it is nice to be able to monitor at home.

Works great!

This oximeter was a replacement for one that was lost. Important to me due to use of oxygen and lung problems. Like that you can adjust the brightness level, and that it has several configurations. My brother who is a paramedic supervisor said that the one's that show a heart rhythm are also more accurate. I checked this against one used in my PCP's office as well as in my Pulmonologist's office and it matched up within 1%. I also like the rubber protective sleeve and that it comes with a a case that can be worn either on your belt or around your neck. Unit shuts off if finger is removed for more than 8 seconds. Good buy, would suggest if you need to track your Oxygen saturation and/or heart rate

Very surprised at the quality for this price. Comes with a rubber cover to protect it when you drop it, a nice case and a lanyard to wear it around your neck if you like. Have a nurse in your life? Buy them one of these. Very acurate.

Bought this after little bit of research. Just go for it. Happy with the product.

Works well. In my trauma kit now. Hope I never have to use it for real. Just bough a second one to put in home kit. Very handy