You asked for the latest and greatest . . . well, the latest (<1 year old) isn't the greatest (ie Promethius), but it's dam close and costs some $2200 less lol.
The scale is an A&D FX120i and the automated trickler you connect to the scale is called the Autotrickler (just google that). The combined price is about $800. You might scan through the following thread for the impression it has made on a pretty tough community including the sources to buy from and comparison to all the other brand name throwers:
Turn your FX120i into a Promethius.
The scale is a mag force restoration scale which means it is unaffected by RF transmission and other noise that causes strain gauge scales (ie all scales under ~$500) to flutter and lose zero. Also unlike many scales programmed to hold tight to zero to avoid flutter (eg Gempro 250), it is sensitive to the drop of a single particle of powder.
The trickler receives the current weight on the scale hundreds of times a second and adjusts the speed of the throw to produce accuracy +/- one kernel of whatever powder you are throwing. If you want tighter than +/- one kernel, you simply scoop out a small quantity of powder and the dispenser runs to target again . . . rinse/repeat and you can easily get to within +/-/0.02gr
(edited, left out an important zero) with most throws of most powders (depends on how heavy each particle is and how much they vary from each other) dead on target.
The A&D FX120i became my 7th and last scale.
Among the rest, the RCBS is consistently rated the best of that lot. After weighing ~1,000 Chargemaster throws on my FX120i I found mine to be no more consistent than a powder measure using "easy to throw" powders (eg H335) and short sticks (eg IMR4064) being ~85% within +/-0.06gr of target
(edited, left out an important zero), but better than my Hornady PM on long sticks (eg IMR4350). The Chargemaster is, however, much quicker to adjust the target charge lol. The accuracy issue is primarily related to the limitations of the scale which includes undetected overthrows.
(Deleted erroneous, gratuitous comparison). As you shoot 300yds or more SD becomes a major factor and it's comforting to know that all your charges are +/- one kernel . . . or better.