This is a great scale. It works so much better than the general-market versions. Now I can eliminate dose volume as a problem when I troubleshoot my extractions.
Positive Product Points
Super Sensitive. Weight will change on a one or two bean change Accurate response. No dithering around about the number. Other neat functions that I'll probably never use. Easy to read display
Negative Product Points
Display light goes off too quick.
After a year-and-a-half I was getting pretty consistent shots from my Silvia. I got the idea that I could get more consistency if I could weigh my beans a little more precisely. The scales I had been using were one-gram accuracy. (there are about 8 beans in one gram) I got one on Ebay and then one at a big box home store. The first one died, the second one was pretty frustrating. It would take a while to settle in to a weight and sometimes I would have to poke it to make it register a change. I finally Googled ".01 digital scale" and found a whole world of precision scales that I never saw at the mall stores.
The response time on this scale is instantaneous to my eye. It goes to its number without bouncing up and down. This is why I recommend this scale.
The CJ-600 is a "tabletop" scale. That's about the size of a salad plate. It uses three triple-A batteries. it has an easy-to-read display and it will do tare weight and it measures in other units including 'count.'