Involvement:General (knows how to use it) - Ownership:1 week to 1 month
- It is small, but not so small to use it as keychain.
- It works as promised.
- Does not show result in promiles. (Maybe it is possible to reconfigure?)
- Not sure how much serious can be measurement result taken.
When I order it first, package have been lost. But DX accept it and sent one more time. I asked for additional traver ticket, paid for it and it came finally.
I test it immediatelly on two persons with some alcohol in their blood alternately. It gives pretty stable measument results. I mean, it gives the same result for the same person.
Don't know how accurate it is. For informative results it looks good.
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