I would recommend helping this project out on Kickstarter. This would be an excellent tool for brewing as it’s a way to keep track of your temperature in the fermentor and the gravity. I know every time that I pull a sample off my fermentor and measure the gravity it’s a sample I’m never gonna get to sample at it’s finest. This device will allow you to wait until you hit your final gravity or will help you by telling you a gravity you want to crash cool your ferment at so you can then add other bugs to the ferment. This device talks to your phone or tablet so you can keep track from wherever you are. I signed up for one and if they don’t get the funding I get my money back.
Check it out