Devices that still work when the internet doesn't.

Baby & Pet / pet feeder

PETLIBRO Granary Automatic Feeder AF006 / PLAF006 ("Basic Button Type")

D0 No Radio — No radio at all. It cannot phone home.

The unplug test

There is no router to unplug. The schedule is set on the unit itself with a Setting button and +/– buttons, up to six meals a day, and a separate manual-feed button dispenses food on demand independent of the schedule. No app, no account, and no WiFi hardware exists to lose. This is the same device before and after any network in the house goes down, because it was never on one.

Why this tier: PETLIBRO's own support documentation describes the entire feeding schedule and manual-feed procedure using only the unit's Setting, +/-, unlock, and manual-feed buttons, with no mention of WiFi, Bluetooth, an app, or an account anywhere. The grantee that files FCC radio grants for every WiFi/Bluetooth model in this exact product line (2A3DE, Shenzhen Libro Technology) has no grant on file for PLAF005 or PLAF006, against 24 grants covering its connected siblings — the sibling-control heuristic that turns an absent grant into real evidence. No radio, no vendor cloud, so it cannot phone home because it has no mouth.

Specifications

Account requirednone
Works offlinefully
Forced firmware updatesno
Radiosnone
FCC IDno intentional-radiator grant found
Local controlnone
Phones homenone
Parts availableunknown
Availabilityin stock
Price bandunknown
Vendor risk 0 / 3

Open questions

Sources

Class A is primary (manual, FCC filing, teardown). Class B is corroborated community reporting. Class C is never sufficient alone.

History

Last verified 2026-09-04 — 2 days ago.