How the Petsafe Scoop Free Self-Cleaning Cat Litter Box works The Petsafe Scoop Free ... and provides good odor control, but it's not cheap. A single disposable tray costs almost $20 and must ...

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The CatGenie is an amazing device to watch in action, basically a self-cleaning litter box for cats that even ... To do that he learned how to use a cheap logic analyzer to read the signals ...