I was a technology geek for years prior t brewing. I have a degree in Computer Science and have worked as a systems Engineer, Engineering manager and IT Director for 30 years. 5 years ago, brewing gave me a hobby different in many ways from my work. At the same time it feeds my need to learn new things. For Christmas this year my wife gave me a Tilt Hydrometer. Its a great device that measures specific gravity directly and reports it via bluetooth to a smart phone app.
First, I bought a CanaKit from Amazon.