But to operate this equipment. As a guide the cheap packaging is an A5 piece of paper, from which you can tap into the operation of the unit more or less. This is by no means self-evident.
After the 3-second Drüclen the ON / OFF button, the unit starts up. Then appears on the display in large letters "ALCO". Pressing otherwise, the device automatically shuts down after 3 seconds. In addition to said ON / OFF button there is another "ST" button, Whatever "ST" should be. Pressing after the power is turned on by "ON / OFF" briefly "ST" button, so the sensor is pre-heated. For the display will initially about 30 seconds the word "WAIT" and the letters "PH" (probably an abbreviation for "Pre-Heat"). Then a kind of countdown appears "PH99" .... "P98" .... until about "PH80". From time to time but it also goes further down until "PH60". Irgednwann starts beeping the device, it seems to us a next countdown, "30 ... 29 .... 28 ...", written very small with a blinking word "blow", for any reason. One has to begin to blow into the tube, while it is essential to the "ST" button and hold. Eventually the device signaled by another beep that it has measured enough. Then flashes on the display "ANL Y", which should probably mean "Analyzing". Eventually the result is displayed, eg "1.12 BAC" (Blood Alcohol Concentration). If you have more than 0.5 per thousand, then the device is blinking in red, also flashes an icon with crossed-out cars.
Turning the power I have not yet fully tapped. After the measurement, you can try the "ON / OFF" button to tap short or long press. Times it comes from, sometimes not, from time to time, the device goes back into the "Pre-Heat" mode. Fortunately, the batteries can be removed back comfortably, so that the switching can be done the hard way.
To my review. For accurate measurement, I would have given 5 stars. There is one point deduction for a very poorly designed "Made in China" interface, as well as poorly designed LCD display. 3 stars.
