Your needs, this model
Does it fit your priorities?
Will the exact PETKIT crystal tray system work with this front-entry hood?
The P9905 manual requires the matching PETKIT Crystal Litter Set; the T7-W1 package adds the compatible front-entry P99051 hood without changing the rake operation.
Explore this need in the finder →Are all cats old enough and clearly above the minimum weight, with dual-band Wi-Fi available?
P9905 is for cats six months or older and over 3.3 lb, and PETKIT lists 2.4/5-GHz Wi-Fi; a five-month kitten is explicitly below the allowed age.
Explore this need in the finder →Will app events suffice, or do you require the system to identify each cat by name?
The manual and product page document app/camera events, but do not establish individual-cat identification for this exact system.
Explore this need in the finder →The PETKIT Purobot Crystal Duo with Hood is the hooded U.S. listing in the Purobot Crystal Duo family: PETKIT gives the exact offer the Shopify SKU T7-W1, identifies the powered box as model P9905, and separately identifies the compatible front-entry hood as model P99051. The hood changes the cat’s approach and adds a physical shell around the tray; it does not turn this crystal-rake into a rotating globe or change the brand-specific tray system. If you need the open, uncovered version, compare the T7/T7-G assessment instead.
What the hooded package adds
PETKIT’s “What’s in the box” diagram for this exact listing identifies one main unit and one front-entry hood, plus the AI camera, its back cover, a crystal litter tray, one crystal litter supply, an N60 odor eliminator, adapter, four screws, hex key and a trash bag. The diagram says the tray is installed in the unit. That package drawing is useful for identifying the offer, but it is not a substitute for checking the carton and instructions you receive. PETKIT also sells a separate front-entry hood, model P99051, and states that it fits the Purobot Crystal Duo without blocking the rake or altering automatic scooping.
The hood is for households that specifically want the front-facing enclosure, such as someone trying to contain kicked litter or block the side view of the tray. PETKIT markets it as helping with tracking and odor, but that is a design claim, not a guarantee that litter will stay in the box or odors will disappear. A hood can also change how comfortable a cautious cat feels about entering. If a cat already avoids covered boxes, the open T7/T7-G is the more conservative version to consider.
The core cleaning routine stays the Crystal Duo routine
The box uses a powered stainless-steel rake over a disposable crystal tray. When the cat has left, the rake moves solid waste into two side traps while the crystals remain in the matching tray. It is not an enclosed drum that sifts ordinary clumping litter. The P9905 manual requires PETKIT’s Crystal Litter Set, including the matched tray, and says not to substitute other brands or clay, tofu or other litter types. If your household must keep conventional clumping litter, a rake built for clumping litter or a compatible rotating sifter is a better route.
Plan to remove and replace the used tray rather than scoop a drawer of separated clumps. The product page gives conflicting “up to” tray-life claims—30 days for one cat in one section and 45 days for optimal performance in another—and says actual life varies with age, weight, diet and health. Treat neither maximum as a service interval. Watch the tray indicator and waste condition, and check the availability and cost of the exact Crystal Litter Set before switching. The camera and app may provide activity or health-related prompts, but they do not diagnose illness.
Cat fit and room fit need caution
The manual identifies model P9905 and restricts use to cats at least six months old and over 3.3 pounds. It does not publish a maximum weight or rated household cat count. A young kitten below either threshold should not be assigned to automatic cleaning. The manufacturer product page lists an entrance-height value of 7.08 inches, but the hood listing does not separately publish the clear opening width or the opening’s mounted height. Do not treat the P9905 figure as proof that a particular cat can comfortably pass through the assembled hood.
PETKIT lists the main unit as 32.20 × 19.96 × 13.14 inches and separately lists the hood as 29.13 × 16.45 × 12.59 inches. Neither source labels those sequences as width, depth and height, and the hood dimensions are not a stated combined footprint or assembled height. Do not add them or use them as a hard room-fit pass. Allow working room for the front entrance, tray replacement and access to both side traps; check the exact assembled piece against the space where you plan to put it.
Connected features are part of the decision
PETKIT lists 2.4- and 5-GHz Wi-Fi for the P9905 family. The manual says to bind the app before first use and place the unit near a stable wireless connection, so this is not an offline-only automatic box. The camera can be switched off in settings, which matters if a camera near a litter area is not acceptable. Some full video playback is tied to PETKIT Care+; do not assume a live view means full cloud history is included. The four detection sensors and rake-stop function are listed on the product page, but no product page replaces close supervision when an animal is adjusting to new equipment.
Who should choose T7-W1?
Choose the hooded listing only when the crystal-tray routine fits and the front-entry enclosure is itself useful. If you prefer an uncovered tray, the T7/T7-G offers the same basic P9905 rake operation without the extra panel. If you need a confirmed clumping-litter plan, a published upper cat-weight limit, a rated multi-cat capacity, a separately dimensioned assembled hood opening, or an offline first-use setup, this documentation does not establish that T7-W1 meets that requirement. Compare the alternatives on those exact points rather than treating the hood as a new cleaning mechanism.
For household decisions, answer the finder’s litter and entry questions together: “crystal” plus “front-entry hood” points to this exact T7-W1 plan, while “crystal” plus “uncovered” points to the open T7/T7-G. Add app or kitten requirements only if they also fit your household. The current U.S. hooded listing, PETKIT hood specification, and P9905 manual describe the package, compatible cover and base cleaning system.
Key details at a glance
| Cleaning mechanism | Automatic rake over a crystal tray |
|---|---|
| Minimum cat weight for automatic mode | 3.3 lb |
| Step height | 7.08 in |
| Empty unit weight | 12.45 lb |
| App reporting / remote controls | Yes |
| Litter and care limits | The P9905 manual explicitly requires the PETKIT Crystal Litter Set with matching tray; other brands and litter types are prohibited. Adding the hood does not change the litter plan. |
| Exact-model and package notes | Exact U.S. option T7-W1 is the P9905 Crystal Duo box plus one P99051 front-entry hood, confirmed by the direct listing, labeled package-content image and separate PETKIT compatibility/specification page. The hood does not block the rake or change automatic scooping, but the clear assembled aperture and full mounted room envelope remain unreported. |
| Tray-life indicator | Yes |
| Tray replacement guidance | PETKIT's product page says up to 30 days for a single-cat household in one section and up to 45 days for optimal performance in another; the page also states actual life varies with age, weight, diet and health. No fixed interval is matched. |
| App setup note | The product page lists 2.4 and 5 GHz Wi-Fi; the manual instructs users to bind the app before first use and place the device near a stable connection. |
| Wi-Fi band | 2.4 and 5 GHz |
| Entry and installation style | Hooded front-entry tray |
| Required litter system | Crystal litter |
| Waste route | Replaceable crystal tray and side traps |
Use the exact model’s instructions for operating limits, supplied equipment and version differences.
Sources for this assessment
- PETKIT U.S. Purobot Crystal Duo with Camera product page
- PETKIT public U.S. Crystal Duo product/variant record (SKU T7)
- PETKIT PUROBOT Crystal Duo with Camera User Manual, model P9905, English V1.0 dated 2025-09-22
- PETKIT U.S. gray Crystal Duo product page and exact option T7-G
- PETKIT public U.S. gray Crystal Duo product/variant record (SKU T7-G)
- PETKIT U.S. hooded Crystal Duo listing, exact option T7-W1; documented but not included in matching
- PETKIT public U.S. hooded Crystal Duo product/variant record (SKU T7-W1)
- U.S. CPSC SaferProducts exact model/SKU query archive (T7, P9905 and Purobot Crystal Duo)
- PETKIT current U.S. manual downloads page; one Crystal Duo manual family entry
- PETKIT U.S. front-entry hood product/model page; P99051, component dimensions and Crystal Duo compatibility
- PETKIT U.S. standalone front-entry hood JSON; SKU T7-PC
Compare the requirements that matter.
Compare cat fit, entry shape, litter, drawer routine, app reporting and exact package contents.
