Here is a smart kitchen scale that connects to your smartphone or tablet and provides you with step-by-step guidance during the baking process. The app shows you weight of each ingredient and adjust recipe serving sizes. Perfect Bake lets you know how much of what to add. It also suggests recipes based on ingredients you have on hand.
Perfect Bake measures from 6 kg to 0.01 grams. It has a built-in timer. Costs under $100 at this time.