I have long sought a bezahllbaren refractometer and am then encountered here because of good reviews in Home Brewing Forum on this. I am very happy with it, because it is very robust and high quality made, easy and easy to adjust and operate, and delivers accurate results, though not very fine, because you can only read all Brix. Who needs it more accurately, to buy the Digitalrefraktrometer of Hanna, what then but costs from 180 euros.