Hario V60 Drip Scale and Timer
The Hario V60 Drip Scale can measure weight sensitivity in 0.1g increments for accuracy while also having a timer to control that variable in addition to your brew ratio. Specifically designed with pour-overs in mind the surface area is big enough for most manual brew devices and accessories and has added the benefit of its accurate sensitivity.
Manual brewing allows you more control over the variables of making a delicious cup of coffee. The key to this lies within your recipe, which is essentially your ratio of coffee to water. A brewing scale becomes essential to measure your coffee and water.