Each box has a sensor rim and a built-in rake that sits on top of a disposable litter tray. The sensors detect when a cat enters the box, and 20 minutes after they've exited, the rake ...

To operate the PetSafe ScoopFree, you load the pre-filled disposable tray into the bottom of the litter box and plug it in. From there, it automatically senses when your cat has used it ...

Disposable litter trays do have some perks ... and you'll want to offer a box your cat will comfortably use. Otherwise, you'll likely end up with regular messes outside the box.