PETKIT PuraMax 2 (T4-2 / P9902)

PETKIT PuraMax 2 is a rotating drum box for cats of 3.3 to 22 lb, by the maker's figures. Its sources claim 2 of the 6 safety layers: weight sensor and open entry. Not found in the sources yet: entry sensor, anti-pinch, cycle delay and stop button.

15 of 22 key fields sourcedData checked October 8, 2026

Video from PETKIT OFFICIAL, the brand's own YouTube channel, shown so you can see the mechanism move. It is the brand's advertising, not a source for any value on this page, and it may mention prices or offers we do not check. Open on YouTube

Safety layers

Which protections a source claims for this model. A claim on paper, not a test result.

Weight sensorEntry sensorAnti-pinchOpen entryCycle delayStop button
  • Weight sensor: claimed, with a source
  • Entry sensor: not found in the sources yet
  • Anti-pinch: not found in the sources yet
  • Open entry: claimed, with a source
  • Cycle delay: not found in the sources yet
  • Stop button: not found in the sources yet
Claimed, with a sourceNot found in the sources yetNot claimed anywhere we looked

Spec sheet

Manufacturer claims, not our measurements. The numbers in brackets lead to the source list at the bottom of the page.

How it cleans
Rotating drum[1]
Entry
Open, nothing closes[2]
Minimum cat weight
3.3 lb (1.5 kg) claimed[2][1]
Heaviest cat
22 lb (10 kg) claimed[2]
Entry opening height
7.9 in (20 cm) claimed[2]
Drum or tray volume
76 L (20.1 gal) claimed[3]
Waste drawer
7 L (1.8 gal) claimed[3][2]
Width
24.4 in (62 cm) claimed[2]
Depth
21.2 in (53.8 cm) claimed[2]
Height
21.7 in (55.2 cm) claimed[2]
Unit weight
22 lb (10 kg) claimed[1][2]
Noise
35 dB claimed[2]
Litter it takes
clumping clay / bentonite / mineral (honeycomb fine sifter), tofu and mixed (standard sifter); particles max 12 mm long, 3 mm diameter[1][2]
App
PETKIT app[1]
FCC ID
2A72N-P9902[4]
FCC grantee (company that filed)
PETKIT Network Technology (Shanghai) Co., Ltd.[4]
Weight sensor
Yes[1][2]
Warranty
24 months (brand claim)[5]
Drawer lasts, one cat
15 days claimed[2]

Key fields not found in the sources yet: Cats per unit, Step-in height (floor to entry edge), Without Wi-Fi, Entry presence sensor, Anti-pinch, Default delay before cleaning, Stop button on the unit, Bags and filters.

When it acts up

From the troubleshooting section of the manual, in plain words.

Screen shows 'Upper cover not closed!'

Why: The magnetic side cover is not closed or not installed properly.

What to do: Re-seat the magnetic side cover.[1]

Screen shows 'Device failure'

Why: A device fault.

What to do: Open the PETKIT app to see the fault details.[1]

Screen says the waste collection bin is full

Why: The waste bin is full.

What to do: Empty the bin and fit a new trash bag.[1]

All 4 problems and fixes

Listed in and related reading

Which automatic litter boxes notice a kitten?Automatic litter boxes for big catsQuiet automatic litter boxes for nervous catsCompact automatic litter boxesAre automatic litter boxes safe for cats?Why is my self-cleaning litter box drum not turning?

Sources

  1. PETKIT PURA MAX 2 user manual EN V1.3 (2026-02-02), p. 3, 4, 5, 7, 9, 10, 11, 17, 26, 27, checked Oct 8, 2026
  2. archived brand page, Feb 8, 2026: PETKIT PuraMax 2 product page, petkit.com (Wayback snapshot 2026-02-08: Specs, FAQ, compare table), Specs / FAQ / Compare, checked Oct 8, 2026
  3. archived brand page, Jun 30, 2025: PETKIT PuraMax 2 product page, petkit.com (Wayback snapshot 2025-06-30: feature blocks + 'Find the Right Product' table), feature blocks, comparison table, checked Oct 8, 2026
  4. fccid.io (mirror of FCC EAS), checked Oct 8, 2026
  5. PETKIT Warranty Policy (US), 2. Warranty Period & 2025 Update, checked Oct 8, 2026