This is a cat death trap. the sensors don't work, the rake is so wide it doesn't get the poop out . also it sticks to the rake. I'm going to try some diy upgrades an see if it can be better. also you can make a forever cat box tray for it using a big Tupperware container. video is on YouTube. I am going to try adding some thing to bottom so I can put a peepad. an different litter to subscribe please