Intuitively done differently

Meanwhile, I have understood this device to some extent. Until then, it was a long way, because the unit is operating very complicated, I think. The biggest shortcoming is that I never could see anything on the screen and never saw light up the LEDs. That's what the fact only very briefly after screwing together and that is so short that it's all over again when you're done with screwing together. The picture in the product description is misleading, because the norm is different: no red, yellow or green dot and a blank display. A seemingly dead device.

Unfortunately, I had half a day to invest the not at all self-explanatory operation of this part to understand. The enclosed, not particularly good manual in English was no great help. On the Internet, however, was quickly a guide to find in German.

The memory function is also a joke, because there is exactly one value memorized: the measured in the last 24 hours maximum CO. On this one comes off only by pressing the test button. That is, this information is to get only a deafening noise. Since I renounce it in favor of good neighborly relations.

Augrund the comments I have the impression that the other co-Warner are not necessarily better than the Ei207D. I would advise anyone who wants to buy a CO detector, advise, beforehand to google the operating instructions on the Internet. Because you know what to expect.

For the memory function I subtract one point, because I feel verschaukelt. For the lack of convenient road again a point.