If you never want to toss, turn or scoop your cat's litter again, this automatic self-cleaning cat box is definitely for you! After your cat has used the Littermaid the sensors are triggered, setting the timer for the cleaning cycle. After 10 – 12 mins the cleaning cycle starts. While the rake is operating an ionic air cleaner is also at work to freshen the air. The safety bar ensures that the rake will automatically stop and reverse at the slightest touch. To prevent noise during the night there is a sleep timer which keeps the rake at rest for 9 hours and the ionic air cleaner comes on for 10 mins every hour to keep odours at bay. The steel rake is durable and detaches easily for cleaning. The carpeted ramp helps to keep litter tracking to a minimum. Petplanet recommends using only World’s Best Cat Litter to keep your Littermaid operating efficiently. Please note cheap so called clumping litter can result in the motor burning out. It is important to sufficiently fill the Littermaid with litter to allow the litter to clump. The LitterMaid LME9000 is suitable for multi cat households and the unit measures, externally, with the ramp fitted, approx L 950mm W 495mm H 215mm (37.4 x 19.5 x 8.5in). With an actual litter area of approx 360x360mm (14.2 x 14.2in) and comes complete with 4 waste receptacles and 4 carbon filters to get you started. Please note that this product requires an electricity supply. Batteries are only designed to be used as an emergency measure.