Kikcstarter has an interesting Fermentation Monitor. Here is the link:
https://www.kickstarter.com/projects/1792157374/plaato-reinventing-the-airlock?ref=nav_search
thoughts on the PLAATO versus PicoFerm?
https://www.kickstarter.com/projects/1792157374/plaato-reinventing-the-airlock?ref=nav_search
thoughts on the PLAATO versus PicoFerm?