Ketosis Breath Analyzer, Digital LCD Keto Meter Breathalyzer with 10pcs Mouthpieces-Black

First off, the meter I got gives results in ppm rather than attempting to convert to blood mmol (which it doesn't actually measure anyway). I figure this is a good thing, though--although there's reasonably tight correlation between acetone and bhb for most people in most circumstances most of the time, I'd rather have the raw data.Second, it clearly works. My daughter and I are both eating a carnivore diet, but she's a mostly sedentary non-fasting teen who's relatively new to it, and I'm quite different. Our numbers/results are reliably quite different also.Third, results from breath meters are highly dependent on the breathing method used (thus giving another reason I prefer the direct ppm units). So it's important to standardize your breathing method to get compatible results.Anyway, I like the little dingus. Only had it a week and a half, so I'll write more if I run into issues later.One more thing: I've run into no reason to change the mouthpiece, or buy new ones, as the manufacturer recommends. YMMV.

Update August 2021: after struggling with the two-times errors from this device, I decided to just let it go through the cycle and give a result twice, by not even blowing into it. Then, I figured I would blow into on the third attempt so I could get a reading. Well, I found that on the second "in-the-air" reading, I was getting a result of 2.6 to 2.9, WITHOUT EVEN BLOWING INTO IT! This thing is completely useless! The readings mean nothing at this point and it is a complete failure of a device. Save your money and just get the much-more affordable pee strips. See my original review and previous updates, below.Update July 2021: after further use of this item, it is now giving me an error TWICE every single time before it finally gives me a reading on the third try. I'm super frustrated that this is getting worse over time. It takes too long to get a reading now. I fully expect the error frequency to increase over time eventually rendering this thing useless.Update: A couple of weeks into using this, and I have found that I get an error result on the 1st attempt every morning. Then I have to repeat the test. I'm not sure why it's doing that, as it didn't in the beginning. It's a little annoying, but not the end of the world I guess. I get a proper result on my 2nd attempt.Original review:At first, I was worried this didn't work, as after following the instructions, my testing brought up .2 each time. And just testing without even breathing into it still brought a result of .2. But then I read the instructions (duh), and found that you are supposed to test in a fasted state. So the next day, I tested upon waking and got a reading of .6. The following day, I got 1.6, and the next day was 1.8. So hopefully, that's accurate. Using urine strips indicated I was in ketosis all of those days as well. Other than that, I don't have any other point of reference. I don't have a blood testing device (that didn't sound great to me).One thing that worried me was that I decided to try testing again after brushing my teeth. Before brushing teeth, the result was 1.8. After brushing my teeth, the result was 2.6. So I'm not sure why that would be different, but I'm guessing it's not a good idea to test after brushing your teeth, fyi.I'm also curious as to why you have to keep buying the little mouthpieces. Can't they just be washed?Other than that, I like the device. It's super easy to use. And I feel assured I am in ketosis, and I'm not at a dangerous level. It's easier, and hopefully more accurate, than the urine strips. It's easier than poking your finger to test your blood.

I started a keto diet with my wife 6 weeks ago, at the beginning I acquired some urine strips and started seeing the increase on our levels, but those after a couple of weeks started not to give meaningful results, I read mix reviews for this equipment, but has a good price so I was willing to pay and review it my self.I noticed that the levels are different from the ones of the urine strips but I think that is normal, when we do the test it repeats the same results if you do it 2-3 times consecutively, which is a good sign, we are 2 users so we see the differences between user 1 and user 2 (significant) I been monitoring mostly on mornings and before sleeping with good results, I do not know how exact it is and have not compared to blood testing, but for my diet this is what I was looking for, very easy to use and good to see if you are kick out of ketosis due some food. after a week of usage we are happy and will suggest if you want to use it for a diet like me

This product was easy to use and the reading very clear. I have cycled the Keto diet for several years. I used test strips before but they never seemed very accurate and not very convenient to use. I feel this product helps not only know where I am at on my diet but I can quick see how certain foods, meals, exercise, and intermittent fasting is effecting it. It has allowed me to adjust and make my diet more personally effective. Great buy and good price!!

state of ketosis ranges between 0-3. This ketone meter is showing range a bit higher. My wife who eats a ton of carbs had measurement of 0.2 - 0.75. While I, on keto, see meter reading from 3-10 depending on the day and time. early morning measurement was over 9, and after 24 hour fasting meter shows 9.95, which is ok. however, when i was truly in keto, measurement was always between 3 and 4. I think the range for ketosis in this meter could be between 3-6

Very limited feed back. I am going to finding a better more interactive system. Wouldn't trust the readings on this system at all.

Very hard to get a reading. You must not have eaten or drunk anything for a reading. I think inaccurate and too many error readings. Unfortunately my return window closed

This meter works two other bands dont