My new toy - aka the Ketonix "breathalyzer"

Yes. The Ketonix instructions advise this longer breathing out time for it to work properly: breathe in as normal and out for the 15 seconds. If you take a deep breath then you are likely to by exhaling "fresh air", and you want the original stale(r) air from the bottom of your lungs, which obviously takes longer to breathe out. I certainly find that sometimes I can get an orange or red reading very quickly, other times it stays at blue or green (mine's the original "traffic lights" one) until I've done at least 15 secs. It does get easier with practice, though sometimes I get a bit of a coughing fit and have to start all over again....

Robbity

LittleGreyCat said:

However I've just checked the price and it is £175 on Amazon.

Brexit exchange rate strikes again.

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Which is at least double the original price from when I got mine three years ago, but it's also been "improved" since then too.

Robbity

PS It may be worth looking at that price though in comparison with the cost of buying the same number of ketone strips as you do tests with the Ketonix: it ought to work out cheaper on the long run... which is how I justified my now bargain puchase price!

GrantGam said:

Has anyone tried a comparison between a ketone finger prick test and the Ketonix?

It looks a very nifty piece of kit, and a very handy tool for those who are looking to permanently remain in a state of dietary ketosis.

The issue with the Ketone finger prick test strips is obviously their expense. Although I appreciate the need for them (even though I've probably only tested for ketones half a dozen times since diagnosis) - they cost far too much. What we see with ketone test strips is the manufacturers targeting the market of intermittent use from T1D's; "they won't need them as much as BG test strips, so we can charge more because they'll last longer..."

As a result, the Ketonix seems like an excellent resource for those who are testing for dietary ketosis (regularly) - both T1 and T2, rather than the T1's testing for ketones on the odd occasion to detect DKA.

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Yes a few non diabetics - body builders and athletes I think did some comparisons early on. There didn't seem to be a lot of correlation (see BJJCaveman's tests here and his link to another set here which I believe I also saw elswhere?) , and I certainly found this to generally be the case when I did some check after I treated myself to some strips when I got my Libre reader and sensor. But we're measuring different chemicals.

My results:
Ketone strip Ketonox
1.1 red
0.6 green
1.1 red
0.8 red
0.4 green
0.6 red
0.4 green
0.3 red
0.3 yellow
0.7 red
0.4 red
0.7 red
0.9 yellow
1.4 red
1.2 yellow
0.6 red
0.6 red

Robbity

And PS @LittleGreyCat - I definitely found that once I was burning ketones nicely, they stopped showing up in my urine (Ketostix). I was puzzled until I did some Googling and found out why! Which is why I eventually got the Ketonix.