Check fit, failure risks and ownership details before buying
Use the matcher for exact-model compatibility, then verify the unresolved products, offline behavior, portion accuracy, common jams and recurring supplies.
The safest match starts with the exact feeder model, your kibble’s widest point and the smallest meal your cat needs. Use the matcher below to screen 15 feeders by manufacturer-published size limits, food type, connectivity and backup power—then verify the current manual for your market.
Research-based guide, not a hands-on test. MeowBay does not claim that a specific food brand will work unless that exact combination has been measured.
Feeder compatibility matcher
Measure several pieces of kibble and enter the widest dimension. The tool treats missing manufacturer specifications as unknown, not compatible. Every row is labelled as an exact-range match, a partially documented model, or a model whose manufacturer does not publish the kibble size.
What kibble size works in an automatic cat feeder?
Automatic feeder kibble-size chart
This chart records the conservative limit when official sources conflict. “Unknown” means the current exact-model source did not publish that measurement.
| Feeder | Published kibble range | Food | Portion reference | Offline / backup note | Editorial status | Source |
|---|---|---|---|---|---|---|
| PETLIBRO Granary 2 PLAF105 · United States / global page |
2–15 mm | Dry | 20 ml; about 10 g nominal Manufacturer volume reference |
Schedule saved; app functions require connection | Verified Verified exact range |
Official source ↗ Checked 2026-10-03 |
| PETLIBRO Air Smart PLAF108 · Australia |
2–15 mm | Dry | 10.4 ml; about 5 g nominal Manufacturer volume reference |
Schedule continues; logs/status may not update | Verified Verified exact range (regional page) |
Official source ↗ Checked 2026-10-03 |
| PETLIBRO One RFID PLAF301 · United States / global page |
2–15 mm | Dry | 20 ml nominal Manufacturer volume reference |
Schedule continues; Wi-Fi disabled on batteries | Verified Verified exact range |
Official source ↗ Checked 2026-10-03 |
| PETLIBRO Space PLAF107 · United States / global page |
2–18 mm | Dry | 20 ml nominal Manufacturer volume reference |
Reduced functions on backup power | Verified Verified exact range; backup warning |
Official source ↗ Checked 2026-10-03 |
| PETLIBRO Granary Wi-Fi PLAF103 · United States / global page |
2–15 mm | Dry | 20 ml; about 10 g nominal Manufacturer volume reference |
Confirm feature availability in the market manual | Verified Verified exact range |
Official source ↗ Checked 2026-10-03 |
| PetSafe Healthy Pet Simply Feed PFD00-14574 · United States |
Not published–19.05 mm | Dry, Semi-moist | 1/8 to 4 cups Manufacturer volume reference |
On-device schedule | Pending verification Verified maximum; minimum unpublished |
Official source ↗ Checked 2026-10-03 |
| PetSafe Smart Feed 2nd Gen PFD00-16828 · United States |
Unknown | Dry, Semi-moist | 1/8 to 4 cups Manufacturer volume reference |
Saved meals continue offline; 4 D-cell backup option | Pending verification Kibble diameter not published |
Official source ↗ Checked 2026-10-03 |
| PetSafe FlexFeed PFD00-18090 · United States |
5–12 mm | Dry | 1/15 cup to 1 cup Manufacturer volume reference |
On-device schedule | Verified Verified exact recommended range |
Official source ↗ Checked 2026-10-03 |
| Whisker Feeder-Robot Current model · United States |
Not published–15.88 mm | Dry, Semi-moist | 1/8 cup to 1 cup Manufacturer volume reference |
Manufacturer says feeder works offline | Pending verification Verified maximum; minimum unpublished |
Official source ↗ Checked 2026-10-03 |
| Cat Mate C3000 347 · United Kingdom |
Not published–16 mm | Dry | From 10 g Manufacturer gram reference |
On-device schedule; 4 C-cell batteries | Pending verification Verified 16 mm maximum; minimum unpublished |
Official source ↗ Checked 2026-10-03 |
| WOPET Cube Air CA10 · United States / global page |
2–12 mm | Dry | About 10 g nominal Manufacturer gram reference |
Confirm saved schedule in manual | Verified Verified exact range; offline warning |
Official source ↗ Checked 2026-10-03 |
| WOPET Cube Lite CL11 · United States / global page |
2–12 mm | Dry | About 10 g nominal Manufacturer gram reference |
On-device schedule; two-battery backup documented | Verified Verified exact model and range |
Official source ↗ Checked 2026-10-03 |
| WOPET Barn Dual Tray FT50D · Global / test documentation |
2–12 mm | Dry | About 12 g nominal Manufacturer gram reference |
On-device schedule | Verified Verified exact range |
Official source ↗ Checked 2026-10-03 |
| HoneyGuardian 3.5L/5L Feeder A303D/A305D · Global / manufacturer manual |
2–15 mm | Dry | 15 ml; about 6 g nominal Manufacturer volume reference |
On-device schedule; 3 D-cell backup documented | Verified Manufacturer manual verified; specification only, not independently hand-tested |
Official source ↗ Checked 2026-10-06 |
| HoneyGuardian RFID Smart Feeder SF35 · Global / manual |
2–12 mm | Dry | 20 ml; about 10 g nominal Manufacturer volume reference |
4 AA: basic feeding/RFID offline; official lithium pack maintains online functions | Verified Verified exact model and range |
Official source ↗ Checked 2026-10-03 |
Portion weights are nominal manufacturer references. Most feeders meter a volume, so two foods can produce different gram weights at the same setting.
Verified model answer cards
These cards separate exact-range records from models with missing or partial first-party documentation. Only cards marked Verified can appear as verified matches in the interactive tool.
PETLIBRO Granary 2
Verified
Model code: PLAF105 · Source market: United States / global page
- Published kibble range
- 2–15 mm
- Food type
- Dry
- Portion reference
- 20 ml; about 10 g nominal (manufacturer volume reference)
- Offline schedule / backup
- Schedule saved; app functions require connection
- Important limitation
- Avoid oversized or irregular cube/crescent kibble Use only bowls, splitters and desiccant packs documented for the exact model; generic fit is not assumed.
- Last verified
- 2026-10-03
PETLIBRO Air Smart
Verified
Model code: PLAF108 · Source market: Australia
- Published kibble range
- 2–15 mm
- Food type
- Dry
- Portion reference
- 10.4 ml; about 5 g nominal (manufacturer volume reference)
- Offline schedule / backup
- Schedule continues; logs/status may not update
- Important limitation
- Measure widest point Use only bowls, splitters and desiccant packs documented for the exact model; generic fit is not assumed.
- Last verified
- 2026-10-03
PETLIBRO One RFID
Verified
Model code: PLAF301 · Source market: United States / global page
- Published kibble range
- 2–15 mm
- Food type
- Dry
- Portion reference
- 20 ml nominal (manufacturer volume reference)
- Offline schedule / backup
- Schedule continues; Wi-Fi disabled on batteries
- Important limitation
- Dedicated collar tag; not implanted microchip Use the dedicated collar tag; this model does not read an implanted microchip.
- Last verified
- 2026-10-03
PETLIBRO Space
Verified
Model code: PLAF107 · Source market: United States / global page
- Published kibble range
- 2–18 mm
- Food type
- Dry
- Portion reference
- 20 ml nominal (manufacturer volume reference)
- Offline schedule / backup
- Reduced functions on backup power
- Important limitation
- Size and shape change portion weight Use only bowls, splitters and desiccant packs documented for the exact model; generic fit is not assumed.
- Last verified
- 2026-10-03
PETLIBRO Granary Wi-Fi
Verified
Model code: PLAF103 · Source market: United States / global page
- Published kibble range
- 2–15 mm
- Food type
- Dry
- Portion reference
- 20 ml; about 10 g nominal (manufacturer volume reference)
- Offline schedule / backup
- Confirm feature availability in the market manual
- Important limitation
- Measure widest point Use only bowls, splitters and desiccant packs documented for the exact model; generic fit is not assumed.
- Last verified
- 2026-10-03
PetSafe Healthy Pet Simply Feed
Pending verification
Model code: PFD00-14574 · Source market: United States
- Published kibble range
- Not published–19.05 mm
- Food type
- Dry, Semi-moist
- Portion reference
- 1/8 to 4 cups (manufacturer volume reference)
- Offline schedule / backup
- On-device schedule
- Important limitation
- Two-pet splitter reduces maximum to 12 mm The optional PetSafe two-pet splitter has a smaller published 12 mm kibble limit.
- Last verified
- 2026-10-03
PetSafe Smart Feed 2nd Gen
Pending verification
Model code: PFD00-16828 · Source market: United States
- Published kibble range
- Unknown
- Food type
- Dry, Semi-moist
- Portion reference
- 1/8 to 4 cups (manufacturer volume reference)
- Offline schedule / backup
- Saved meals continue offline; 4 D-cell backup option
- Important limitation
- Ask PetSafe to confirm the exact food and model in writing Use only bowls, splitters and desiccant packs documented for the exact model; generic fit is not assumed.
- Last verified
- 2026-10-03
PetSafe FlexFeed
Verified
Model code: PFD00-18090 · Source market: United States
- Published kibble range
- 5–12 mm
- Food type
- Dry
- Portion reference
- 1/15 cup to 1 cup (manufacturer volume reference)
- Offline schedule / backup
- On-device schedule
- Important limitation
- Use recommended range Use only bowls, splitters and desiccant packs documented for the exact model; generic fit is not assumed.
- Last verified
- 2026-10-03
Whisker Feeder-Robot
Pending verification
Model code: Current model · Source market: United States
- Published kibble range
- Not published–15.88 mm
- Food type
- Dry, Semi-moist
- Portion reference
- 1/8 cup to 1 cup (manufacturer volume reference)
- Offline schedule / backup
- Manufacturer says feeder works offline
- Important limitation
- Hopper insert recommended for some large/square kibble Use only bowls, splitters and desiccant packs documented for the exact model; generic fit is not assumed.
- Last verified
- 2026-10-03
Cat Mate C3000
Pending verification
Model code: 347 · Source market: United Kingdom
- Published kibble range
- Not published–16 mm
- Food type
- Dry
- Portion reference
- From 10 g (manufacturer gram reference)
- Offline schedule / backup
- On-device schedule; 4 C-cell batteries
- Important limitation
- Published maximum only Use only bowls, splitters and desiccant packs documented for the exact model; generic fit is not assumed.
- Last verified
- 2026-10-03
WOPET Cube Air
Verified
Model code: CA10 · Source market: United States / global page
- Published kibble range
- 2–12 mm
- Food type
- Dry
- Portion reference
- About 10 g nominal (manufacturer gram reference)
- Offline schedule / backup
- Confirm saved schedule in manual
- Important limitation
- Measure widest point Use only bowls, splitters and desiccant packs documented for the exact model; generic fit is not assumed.
- Last verified
- 2026-10-03
WOPET Cube Lite
Verified
Model code: CL11 · Source market: United States / global page
- Published kibble range
- 2–12 mm
- Food type
- Dry
- Portion reference
- About 10 g nominal (manufacturer gram reference)
- Offline schedule / backup
- On-device schedule; two-battery backup documented
- Important limitation
- Measure widest point Use only bowls, splitters and desiccant packs documented for the exact model; generic fit is not assumed.
- Last verified
- 2026-10-03
WOPET Barn Dual Tray
Verified
Model code: FT50D · Source market: Global / test documentation
- Published kibble range
- 2–12 mm
- Food type
- Dry
- Portion reference
- About 12 g nominal (manufacturer gram reference)
- Offline schedule / backup
- On-device schedule
- Important limitation
- Dual-bowl split may vary Use only bowls, splitters and desiccant packs documented for the exact model; generic fit is not assumed.
- Last verified
- 2026-10-03
HoneyGuardian 3.5L/5L Feeder
Verified
Model code: A303D/A305D · Source market: Global / unspecified
- Published kibble range
- 2–15 mm
- Food type
- Dry
- Portion reference
- 15 ml; about 6 g nominal (manufacturer volume reference)
- Offline schedule / backup
- On-device schedule; 3 D-cell backup documented
- Important limitation
- Manufacturer-supplied A303D/A305D manual specifies 2–15 mm; earlier online manual versions may state 2–12 mm. Specification verified; not independently hand-tested. Use only bowls, splitters and desiccant packs documented for the exact model; generic fit is not assumed.
- Last verified
- 2026-10-06
HoneyGuardian RFID Smart Feeder
Verified
Model code: SF35 · Source market: Global / manual
- Published kibble range
- 2–12 mm
- Food type
- Dry
- Portion reference
- 20 ml; about 10 g nominal (manufacturer volume reference)
- Offline schedule / backup
- 4 AA: basic feeding/RFID offline; official lithium pack maintains online functions
- Important limitation
- Dedicated RFID tag Use the supplied RFID tag and the power configuration documented in the SF35 manual.
- Last verified
- 2026-10-03
How do you measure kibble for an automatic feeder?
- Sample 10 pieces.
Do not measure only the smallest piece in the bag. - Measure the widest point.
Use a millimetre ruler or caliper, including thick edges. - Leave a reliability margin.
Near the stated maximum, run the 10-dispense test before relying on the feeder.
Diameter is only the first filter. Record shape, surface oil, broken crumbs and whether pieces stack across the outlet. Do not grind prescription or therapeutic food to force it through a feeder without veterinary and manufacturer guidance.
Which automatic feeder handles large kibble?
From the exact specifications reviewed here, PetSafe Healthy Pet Simply Feed publishes the largest maximum at 19.05 mm, followed by PETLIBRO Space at 18 mm, Cat Mate C3000 at 16 mm and Whisker Feeder-Robot at about 15.88 mm. That is a screening order—not a reliability ranking.
Two limits matter: the base feeder and every accessory in the food path. PetSafe’s optional two-pet splitter, for example, has a smaller published limit than the Healthy Pet Simply Feed base unit. Whisker recommends a hopper insert for some large, square or unusually shaped kibble. Always match the exact accessory and model revision.
Why feeder portion grams are estimates
Many automatic feeders rotate an impeller or open a fixed chamber. The machine controls volume, while the label and your feeding plan usually use grams or calories. Dense small kibble can weigh more than airy large kibble in the same chamber. That is why “10 g per portion” should be treated as a starting estimate.
The MeowBay 10-dispense accuracy test
- Tare a kitchen scale with the empty bowl.
- Dispense the same setting 10 times, weighing each output separately.
- Add the 10 weights and divide by 10 for the average.
- Record the lightest and heaviest result; a wide spread can signal bridging or inconsistent pieces.
- Repeat after changing food, cleaning the rotor or adding a splitter.
Use the measured average in the Automatic Feeder Portion Calculator, and compare it with the feeding amount recommended for your cat. A feeder setting is not a veterinary calorie prescription.
What causes automatic feeder food jams?
Common causes include kibble wider than the stated outlet, mixed shapes, fragments accumulating around the rotor, an overfilled hopper, an incorrectly installed bowl or splitter, and oily residue increasing friction. A jam warning in an app is useful only if the feeder detects the blockage and remains connected.
If a feeder misses meals, follow the exact manual, empty and unplug the machine before handling the food path, clean and dry removable parts, and run repeated supervised cycles. Use our automatic feeder not dispensing food guide for the troubleshooting sequence.
Will an automatic feeder still work without Wi-Fi or power?
These are two separate failures. Some smart feeders retain a saved schedule when internet service drops, but remote commands, logs and alerts stop. During a power cut, the feeder also needs installed, charged batteries—and some models disable selected functions on backup power. Never interpret “works offline” as “everything works normally.”
Before leaving home, disconnect Wi-Fi briefly, then test a scheduled meal. On another day, simulate loss of mains power using the manufacturer-approved backup configuration. See automatic feeders without Wi-Fi for non-connected options.
Do desiccant bags affect feeder compatibility?
A desiccant bag does not make oversized kibble fit, but it can help manage moisture inside a sealed lid when used exactly as instructed. Replacement size, holder design and interval are model-specific. Do not place a loose packet where a cat can reach it, and do not assume a generic packet is food-contact appropriate. Build the replacement schedule around the exact manual, climate and condition of the packet.
Automatic feeder compatibility questions
Can I use large kibble in a PETLIBRO feeder?
It depends on the exact model. The verified maximum in this database is 15 mm for Granary 2, Air Smart, One RFID and Granary Wi-Fi, while the PETLIBRO Space page publishes 18 mm. Granary 2’s official page contains a conflicting wider FAQ figure, so MeowBay uses 15 mm conservatively.
Why does my automatic feeder dispense different gram amounts?
Most feeders meter food by chamber volume rather than weighing each release. Kibble density, size, shape, crumbs and hopper pressure can change the gram weight. Run 10 identical dispenses and use the measured average.
Can an automatic feeder dispense semi-moist cat food?
Only use semi-moist food when the exact manufacturer explicitly allows it. In this review, selected PetSafe models and Whisker Feeder-Robot publish dry/semi-moist compatibility; many compact feeders are dry-only.
Will a two-cat splitter work with large kibble?
Not automatically. The splitter becomes the narrowest part of the food path and can impose a smaller limit than the feeder. It can also split portions unevenly depending on kibble shape and installation.
What should I do before relying on a feeder while away?
Confirm the exact model and manual, complete at least 10 supervised dispenses with the actual food, test scheduled feeding without Wi-Fi, test approved backup power, install fresh batteries and arrange a human check-in. A feeder is not a substitute for appropriate daily care.
Dataset changelog
- October 3, 2026 — version 1.0: published 15 exact-model records, 10 verified exact ranges and 5 records pending full range verification.
- WOPET Cube Lite CL11 and HoneyGuardian SF35 moved to verified after exact-model documentation was located.
- October 6, 2026 — verification update: HoneyGuardian A303D/A305D moved to verified after support supplied an exact-model manual specifying dry food and a 2–15 mm kibble range. The specification was verified; the feeder was not independently hand-tested.
- Unknown values remain unknown. MeowBay does not infer a missing minimum, maximum, market feature or accessory fit.
How MeowBay built this database
MeowBay recorded specifications from official manufacturer product, FAQ and manual pages for the exact models shown. We preserved missing fields as unknown, marked regional sources, separated volume from gram estimates, and used the narrower value when an official page contradicted itself. This is a living specification database, not laboratory testing.
Last source check: October 3, 2026. Recheck the model code, market, manual and checkout page before buying because manufacturers can revise hardware and documentation.
MATCHED MODELS
Compare current PETLIBRO options
Use the verified model limits above first. These merchant links help you check current availability after you have confirmed the exact model and kibble range.
PETLIBRO Granary 2
For dry-food scheduling with the published limits shown in the compatibility table.
PETLIBRO One RFID
For selective-access feeding when collar-tag control solves a real multi-pet problem.
PETLIBRO Space
For owners prioritizing sealed storage capacity; verify regional availability and specifications.
PETLIBRO Granary Wi-Fi
For app-based dry-food schedules; check the exact regional version and backup behavior.
Affiliate disclosure: MeowBay may earn a commission from clearly marked merchant links at no extra cost to you. Official-source links remain available for verification and do not determine the editorial conclusion.
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