I did research to see which forehead thermometer is more effective to buy and ended up with this one. By far the worst choice I have made. I read about deviations of 0.1 but this one might have a whole 1°C deviation. It will show me from 37-39 if the child has a fever and you can't tell which value is correct until you use the underarm thermometer. A Chinese one that cost only 1/3 of the price of this one was more reliable since it had a deviation of at least 0.5...with this one, I can't even roughly understand the child's fever. And I did research before buying, they say, to get a good one...I'm crying my money!

It does not have accuracy in measurements, at least not always. And I cannot understand the conditions that affect the measurements. It is not possible for the temperature difference at the same point to be half a degree or more within a few seconds.

Really fast and reliable. Impeccable construction quality. It predisposes for durability over time.
We have it at work and since we use it in practice, I saw that it's worth its money, that's why I bought it.