New hand made magnetically coupled stirring base for any generator setup.

Single speed at 30-40 RPM

Uses very strong Neodymium magnets in both the spinner and on the disk. [Keeps stirring even 2 or 3 inches above the surface]

This is technology that is has been used by laboratories for a very long time.

I've been looking for an affordable unit for years. The cheapest I could find starts at around $80 + S&H and its slowest speed is probably too fast [Hanna Instruments]

From there, it's $400 and up into the thousands and ALL run too fast.

Due to the low RPM [very hard to do, BTW] this stirrer can't stir too fast, yet is enough to stir a gallon of water with only 3 beads.

There are nicer looking Teflon lab spinners aka "Spin Bar" available, but they are pricey and not necessary...and they don't work as well. [Stick "lab" on any commercially available item and add a zero or two to the price..Know what I mean?]

This is what they look like