This SensorfreshQ answers the question bachelors and fast food enthusiasts always ask themselves: "will I die if I eat this meat?" It works by analyzing the air around the meat, detecting the amount of bacteria and displaying the levels on an easy three light meter. If it's green it's safe, if it's yellow you have a day, and if it's red you should probably throw it away.
The QCard sensor needs to be replaced every two months, which are $9.95 for a pair. The SensorfreshQ itself is $89.95, and should pay for itself the first time you don't have to go to the emergency room.