A defective copy came across, in which the beam shone crookedly, because of which its measurements could not be trusted. I was lucky that the store returned the money without any problems, but it could not have been lucky. The button for changing modes is located as inconveniently as possible, when measuring, you need to be very careful not to press it, it’s just sick. Because of this, it feels more like a toy than something that can be trusted.