Canaries may not rival pit bulls for their ferocity, but as the ‘coal mine’ saying goes, they damn well know when something ain’t right. This canary doesn’t tweet (or use Twitter), but it does promise to keep you abreast of your happenings at home via its HD camera, microphone, and other tech stuff. It’s controlled from your iPhone or Android device and it tracks everything from motion, temperature and air quality to vibration, sound, and activity. Best of all: no bird droppings.