This device is a base and movable top (paired with a Spark iOT board) so that you can check the status of your butter (none or some) from anywhere in the world. Add a few more platforms (milk, eggs, juice) and your refrigerator can tell you what to pick up on the way home. Since a refrigerator is not a Faraday cage (sorry Mr. Snowden), information can be passed from the inside to the outside.