Positives:
+ The device comes only once conveniently packed in a black case
+ Inside are the Alcotest 3000 itself, 3 tubes, the manual and a hand strap
+ Tester is smaller than expected and fits nicely in a hand
+ Makes a high impression, nothing creaks or wobbles
+ Batteries (2xAA) are already installed, so you can get started right away
+ Operation is really easy, just switch, plug and test tube
+ Ie no complicated display, where you only need tens of times to make settings using manual (have fought the day with a bike computer)
+ Please note that you should wait a good 15 minutes to the trade fairs
+ Then and wait until "Ready" appears, then blow into the tube until a beep is gone
+ And then just read the alcohol level
+ Basic test: in the fasted state is measured in fact always 0.0
+ Second test: after a shared bottle of sparkling wine and a digestif 00:47, at the partner about a third more. Sounds realistic. Just in "roadworthy", felt one thinks it would be already a little more
+ Third test: when adding some wheat beers, it goes then with about 0.2 per Weissbier high, which seems realistic
+ Fourth Test: 2 half beer to eat to stay below 0.5, even that sounds realistic at a vigorous man
+ In final measurements after 15, 30 minutes, begin the values already sinking
+ The manual speaks of around 5% maximum deviation, so you can work with the tester very well
+ Automatic shutdown after 5 minutes.
Neutral:
o paid recalibration required about once a year, but OK, accuracy requires care / maintenance.
Negatives:
- Nothing really found.
CONCLUSION: Very easy to use, professional measuring tolerance, self-experimentation traceable measurements.
Clear recommendation, the device does what it promises. 5 Stars.
Postscript: Of course, the measured values are very individual and different from person to person, from day to day, from circumstance to circumstance. For me it remains in control when beer, then no more than 2 beers when traveling by car, or a corresponding number of "Light". But hey, why not even entirely without ?!
