One of the problems with the smart home movement is that you are practically asked to buy new furniture or appliances that incorporate those brains. Sometimes, that isn't an option, either when the normal, non-smart product is loads better or if it's just really impossible or difficult to replace them. Like AC units, for example. However, thanks to products like tado, you don't have to miss out on the promise of a smart home. The tado Smart AC control fits any type of home AC unit and gives it a bit of a brain.