I work for a scale company so I can use my samples - $3000 worth of automation. I measure out chemicals in lots - ten kits at a time and seal them in indusrial plastic bags. The scale is calibrated and accurate to .01 gram and the scale operates a hopper with a vibratory feeder and will fill each bag within a few seconds. It is really a nice perk because I'd probably look for an old double beam balance or have to spend several hundred on a cheap precision bench scale. - If I was looking - I would try to find one that is no mre than 500 grams capacity - A decent load cell can support 10,000 divisions (ours will do over 30,000) - that would give .05 gram resolution and you can mix a liter of almost anything with 500 grams capacity. - Frank