Yes -- you set the dial to the desired number, which correlates to approximate ppm-level of the finished product, and when that ppm-level is achieved, the unit shuts itself off. MA
________________________________ From: Golden Aldi goldena...@gmail.com Another question just to be sure.... the Colloid master shuts off when you've reached the selected ppm number? And you reached this by setting the dial to #3, correct? 6) Yes -- the Colloid Master has an automatic shut-off. I think this answers your questions. Let me know if I can be of further help. MA ________________________________
