Their main claim: "Sigsense Sensors are field-switchable sensing modules which replace the current generation of single purpose instruments. All Sigsense Sensors connect to the Sigsense Wireless Dock through a common interface. This portability and convenience allows workers to always carry the right instrument for the job." In other words, a technician in a food manufacturing plant doesn't need to carry a humidity-measuring tool, a multimeter, a signal strength meter, and four or five other measuring tools, to the point where he's got a backpack full of instrumentation or a rolling a cart full of measuring devices. That technician can now (in theory) carry a single, wireless sensor body, and put the sensors he needs on it as easily as you change heads on an electric hair trimmer. Check their blurb on AngelList for more about what this company is up to, and note that they are going way beyond making one measurement at a time. They're talking about collecting instrument data, along with tracking technicians, and sending all this data to the cloud, where you can do with it as you wish. But not today. The website says they will have products available "soon." (Alternate Video Link)