Whisker
The confirmed Pro accessory list names Litter-Robot 5 LitterHopper, PetTag, waste-drawer liners and a carbon filter. LitterHopper is the refill add-on; PetTag is the identification add-on. Liners and a filter appear in the package contents. Whisker app connectivity and paid video access are separate from these hardware relationships.
Sure Petcare
Start with the exact model, not the number of free connections. Sure Petcare Hub supports compatible Connect products and up to 10 devices. SureFeed Microchip Pet Feeder Connect has a confirmed Hub route for its app-connected functions; that does not establish compatibility for every feeder, pet door or other wireless pet product.
PetSafe
Implanted-chip access is documented for cats using the Medium SmartDoor. The supported formats are FDX-B 15-digit, FDX-A 10-digit, AVID H, and AVID Encrypted 9- or 15-digit. If that combination does not apply, paired Pet Door Keys are a documented route for dogs and cats.
- SmartDoor Connected Pet Door
Whisker
Whisker recommends standard-weight clay clumping litter. Litter-Robot 5 LitterHopper is compatible but requires firmware 5.9.6 or later and Whisker app 1.38 or later before installation; its capacity is 17.3 cups. Those checks are separate from included consumables and optional Whisker+ membership.
Sure Petcare
For pet access, SureFeed Connect uses a registered microchip or the Sure Petcare RFID Collar Tag. For app-connected records and portion settings, it needs a Sure Petcare Hub. These are separate requirements: choose the correct identifier for the pet and the correct connection for the app.
- SureFeed Microchip Pet Feeder Connect
Tractive
The confirmed DOG 6 parts have different jobs: the rubber clip attaches the tracker to a collar up to 2.8 cm wide, the USB-C cable charges it from a 5V supply, the port cover has an official replacement route, and the Base Station supports a Power Saving Zone where LIVE tracking is unavailable.
Tractive
Check two things separately: whether the listed CAT 6 Mini collar fits your cat, and whether you want a tracker that needs an active subscription. The product listing specifies cats weighing 3–8 kg and a 19–22.9 cm neck range; the integrated tracker-and-collar setup weighs 32 g.
PETLIBRO
No: PETLIBRO One RFID does not read an implanted microchip. It recognizes the dedicated PETLIBRO RFID collar tag, with 1 tag paired per feeder. Tags from other brands are not compatible substitutes.