@Will-Dickson I was considering purchasing the cheapstat until I saw a few forum posts stating that its current limits are lower than what I need - for cyclic voltammetry with prussian blue as the working electrode - and it doesn't seem like there 's an easy way to change its range. Now though, the one you've posted a few weeks ago here (Low current measurements for Cheapstat looks promising, and it would be awesome if you let us know more about it. Do you have any further details on its specifications and launch date?