Here are the various current models of LitterMaid litter boxes and some of the accessories for them. They come in two sizes and several different models. The accessories include different types of covers, as well as an essential paw cleaning ramp (included with some models).
Triggered by the activity of your cat as she leaves the box, all the models use the raking method on a timer to move the clumped/soiled litter into a receptacle. Here is a general overview of how the LitterMaid self-cleaning models work.
Like many pieces of machinery, these devices can be sensitive. Make sure that if you purchase one of these, that you read and follow the instructions carefully. Litter levels and other quirks can cause what may be seen as "malfunctions" that could be avoided by more attention to detail. Nothing is maintenance free.
The LitterMaid Mega Self-Cleaning Litter Box (Model Number LM900) is the largest model with a litter area of 17" x 14" and includes the Paw Cleaning Ramp.
This model is the choice for larger cats and multiple cat households, but I would get this one no matter what. It comes with 12 disposable waste receptacles, the Triple-Action Tool for cleaning and measuring, and 4 odor-absorbing carbon filters.
The LitterMaid Elite Mega - Advanced Automatic Self-Cleaning Litter Box (Model Number LME9250) comes with a fancy box cover called the Kitty Kabana Cat Privacy Tent. It also includes 4 Waste Receptacles, 4 Carbon Filters, the Paw Cleaning Ramp, and the Triple-Action Tool.
The LitterMaid Self-Cleaning Litter Box - Basic (Model Number LM500) includes 4 Waste Receptacles, 4 Carbon Filters, and the Triple-Action Tool.
According to customer reviews, this is one of the best mats on the market, even for use with standard boxes.
The Kitty Kabana and the Privacy Tent are litter box covers for your self-cleaning box.
Waste receptacles, carbon filters, and air cleaner.
A lot of people are interested in hiding the litter box. The Refined Litterbox II is a piece of litter box furniture for electronic boxes. It fits the LitterMaid Elite, LitterMaid Mega, ScoopFree, and Petmate Purrforma.