Say hello to the completely re-imagined Litter-Robot III Open Air. Freeing yourself from scooping litter has never been more convenient. The improved, self-adjusting weight sensor knows when your cat is inside and when it’s time to clean up. After each use, a timer counts down, allowing clumping litter to set before a cleaning cycle begins automatically. The patented sifting system preserves the clean litter and deposits the waste into a convenient carbon-filtered drawer below. Empty the waste drawer when indicated and add litter as needed.