Such an elegant solution. This method could also be used to embed similar things. How about humidity sensors embedded inside buildings? Like, the builder could

Such an elegant solution. This method could also be used to embed similar things. How about humidity sensors embedded inside buildings? Like, the builder could throw a couple of them into a wall when they build it, and trivial to scan and measure the temperature or internal humidity level inside the wall (or other equipment, maybe industrial equipment) during routine inspections.