Rake~$219UBPet
A low, open rake box 7.6 inches tall, closer to an ordinary pan than to a drum. Two rakes with an 8 mm gap sweep the Teflon-coated tray and four weight sensors pause the cycle if a cat steps on or leans against the base. UBPet rates it for cats from 2.2 to 24 lb, and tells owners to use manual mode for cats under 6 months or 3.3 lb. Clay, mineral and cassava litters work; long strip-shaped litter does not.
Approx. price
~$219
maker's store, not a live price
Best for: Cats that will only use a low, open pan
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UBPet says the sensor detects cats from 3.3 lb and sets a minimum age of 6 months. At the usual rate of about a pound a month, that means leaving automatic cleaning off until roughly 6 months. Below the threshold, a kitten may not register at all, and the box could start a cycle with it inside.
Detection: weight. The maker does not state any anti-pinch protection.
How minimum weights work, and what to do below themThe maker publishes no drawer volume, so the days cannot be worked out.
The two lists above are drawn from the maker’s own pages, manuals and prices, not from owner reports. Where owner discussion has been read it appears in its own section below, so the two are never mistaken for each other.
No owner discussion has been read for the UBPet C31 yet. This section stays empty until there is something real to put in it.
Rake
Best for: Cats that will only use something that looks like a normal pan
Rake
Best for: Cats that refuse enclosed boxes, in homes that want to keep their current litter
Check price on AmazonRotating drum
Best for: Short-legged, older or heavy cats that need a low entry into a big drum
Check price on Amazon