Smart home automation is the ultimate life hack, in my humble opinion. Whether for efficiency, accessibility, nerding out, or just plain laziness, all you need are smart home devices and a little problem solving. In a lot of cases, the smart home tech you need above all is a sensor. As part of my goal to help you learn to build automations that make your lives easier, here's a compendium of what you can measure with smart sensors available on the market now.