Hario V60 Drip Scale - Black

A scale with a timer for hand dripping. The V60 measures both the amount of coffee that has dripped and the time that has elapsed for the perfect drip coffee.

It's seriously recommended for your home-brew kit.  Makes extraction ratios easier to dial in.  Get weights and volumes out of the way with this and then work on grind settings and temps and roast degree and and and, hello Rabbithole!