Factual list — not a ranking

Documented safety mechanisms

PURRINDEX does not rate, rank or score safety, and applies no comparative safety adjective to any product. What follows is a list of the sensing and cycle-interruption mechanisms each manufacturer documents. A longer list is not evidence of better protection: it may reflect a more detailed marketing page.

27 of 44 products document at least one mechanism.
Product	Mechanisms the manufacturer documents	Source
Amazon Basics Automatic Self-Cleaning Litter Box (SMARTO M500)	safety sensors (type and count not specified)	Retailer-declared
BISSELL CleanWell 4393	SmartStop obstruction detection 360 degree radar sensors 6 infrared sensors (per marketplace listing)	Manufacturer
CATLINK Scooper Open-X	entrance remains open at all times (incomplete gear) anti-pinch protection	Retailer-declared
CATLINK Scooper Young Pro-X	anti-pinch sensor gravity sensor	Manufacturer
Casa Leo Leo's Loo Too	radar weight sensors on base anti-pinch sensor	Manual
CatGenie CatGenie A.I.	GenieEyes cat-presence detection blocks cycle start	Manufacturer
HHOLOVE Automatic Litter Box Pro (60 L)	anti-pinch structure radar safety protection (marketplace listing)	Manufacturer
HomerunPet CS106	radar sensor 4 weight sensors anti-pinch safety bumper	Manufacturer
Mimfam Open-top, 4 pairs infrared	4 pairs of infrared sensors	Retailer-declared
Neakasa M1 Plus	6 sets of infrared sensors 4 weight sensors	Manufacturer
CAST-500C open-top platform	anti-pinch (unspecified) weight monitoring	Retailer-declared
Omega Paw Roll 'n Clean / Elite Roll 'n Clean	not applicable — no powered mechanism	Retailer-declared
PETKIT Pura X	infrared sensor anti-pinch safety sensors entrance safety sensors	Manual
PETKIT PuraMax 2 (P9902)	xSecure infrared sensor weight sensors accident protection	Retailer-declared
PETKIT Purobot Max 3 (P9906)	12 sensors (movement + weight) xSecure anti-pinch structure	Manufacturer
PETKIT Purobot Max Pro 2	infrared sensors weight sensors xSecure anti-pinch structure	Manufacturer
PETKIT Purobot Ultra (P9903)	20 high-precision sensors (infrared + weight) xSecure	Manufacturer
PETLIBRO Luma	weight sensing visual (camera) detection infrared motion anti-pinch protection	Manufacturer
PetPivot Autoscooper open-top (7 pairs of safety sensors)	7 pairs of safety sensors (type not specified) anti-pinch protection	Retailer-declared
PetSafe ScoopFree OpenSky	weight sensor (cat presence) cat-entry detection at a weight change greater than 3 lb (1.5 kg) cleaning cycle starts only after the cat leaves	Manual
PetSafe ScoopFree SmartSpin	weight sensor (cat presence) cat-entry detection at a weight change greater than 2.5 lb (1.1 kg) cleaning cycle starts only after the cat leaves	Manual
PetSnowy SNOW+	radar sensors weight-based sensors SnowSafe+ multi-stage pause on entry	Manufacturer
Petcove PurrTek Max	advanced safety sensors (unspecified) dual anti-pinch (Light model)	Retailer-declared
Whisker Litter-Robot 4	lasers weight sensors anti-obstruction SafeCat System / Omnisense	Manufacturer
Whisker Litter-Robot 5	lasers weight sensors anti-obstruction SafeCat System / Omnisense	Manufacturer
Whisker Litter-Robot 5 Pro	laser (Omnisense) weight sensors anti-obstruction SafeCat System	Manufacturer
Whisker Litter-Robot EVO	weight sensors anti-obstruction SafeCat System	Manufacturer

17 products

Documents no mechanism

For these products no sensing or cycle-interruption mechanism could be located in any manufacturer document. This is a statement about available documentation, not about how the product behaves.