I rarely care enough to use it, but I acquired a lab grade hydrometer for final gravity readings. It only has a range of .995 to 1.020, if I recall correctly. Most of the time the refractometer is sufficiently close for my homebrewing. I find it interesting, however, how many people who are first tasting a homebrew want to know the ABV and total time from brewing to drinking, but little else about the process.