The Neo smart jar that I wrote about in February weighs its contents and adds that item to the grocery list on your smartphone when it runs low. It's a clever idea with one significant drawback: You must transfer the ingredients from their original containers into the smart canisters. Obviously that won't work well for liquid or canned ingredients, such as milk, sauces, and soups.At the same time I was talking with the folks behind the Neo smart jar, I was also exchanging emails with Italian entrepreneur Uriel Perugia. Perugia's company, SmartQsine, was working on a similar idea, but with a different execution: Embed the sensors in networkable pads and use the containers-bins, jugs, cans, or what have you-that the product came in or that you already own. SmartQsine's solution is not only less expensive, it's also more versatile. It allows you to monitor the inventory of anything that will fit on the pad, not just foodstuffs. Think paper for your printer, nails for your workshop, extra gasoline for your lawn mower, toilet paper-it should work for just about any product you don't want to run out of.To read this article in full or to leave a comment, please click here