WAOAW Stainless Digital Scale 500g Capacity. 0.01g Resolution. Backlit LCD display. Stainless top. Tare (zeroes out scale so you can subtract weight of empty container), Uses 2 AAA batteries. I like scales that use easy to find battery types. Includes scale cover.
With a .01 (1/100th) gram resolution this should work well for water salts, hops and other brewing ingredients.Also Consider