Hi,
I'm using a OHAUS scale, batch up to 200g with a precision of .1g. It works pretty well and I guess the price would be around $100 (maybe less!).
Initially I started with the basic (but efficient) scale described in the Chapt 3. It does the job for sure. But now with a very fair time of practice, I m now very happy to use this electronic scale, I get the ratio-ed batch in very little time.
Finally, I ve got a ratio pump which is not currently set to the ratio of my epoxy system so I can't tell much about it... Comments on this one will come soon!
In the mean time, enjoy getting the numbers right on that scale
Tony