The Pluto Circle Zero Smart Litter Box cleans up after your cat so you don’t have to. This smart litter box has sensors that detect your feline’s presence. It’ll then wait seven minutes before automatically scooping the waste from the litter and storing it separately. As a result, this smart gadget eliminates any odor inside the tray. Also, it prevents you from having to scoop up your pet’s business. Once the exterior compartment is full, you can use a liner..