This cartridge works flawlessly in my HP B210a - as did the color from the same supplier. The level indicator appears to be reasonably accurate, at least as far as one can tell as a layman. It only receives an indication that it is foreign cartridges which was not disturbing. I can not say anything because I have no experience or even readings over the range of the ink contents. I'll buy these cartridges, easily one can not save his money than here.