It came to me, the cover is normal., just that the device enters a little tight, quickly putting it back is not convenient, I use my pocket more often. Accuracy of indirect horizontal measurements (sometimes even from a tripod) +- 5–10% Accuracy of vertical, it seems better, about 99% (at an angle of ~ 30 degrees), it must be taken into account that indirect measurements must be made either from a tripod, the rotation of which does not displace midpoint, or from the heel if the measurements are vertical), there are no miracles, do not see ads on YouTube. On a sunny day, it is quite possible to measure distances of 30m without reflective stray. At dusk or indoors, it gives out the declared 80m. Just like a tape measure for repairs in the room, he suits me.
I hope the photos I added make my review more helpful and informative.
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