The Hario drip scale (VST - 2000) is an exceptional addition to any pour over setup. The scale has an integrated timer for perfect pours and has .1g increments for high precision weighing. The scale also features an automatic shutoff after 5 minutes (not activated when the timer is on).
The Farrier Collection was designed with this scale in mind and sits on top of the weighing plate perfectly. (The walnut and lab style bases are slightly larger than the top of the scale.)