SMART SENSOR PET WATER FOUNTAIN · 3.2 L
YS-3 Smart Sensor Pet Water Fountain — 3.2 L Stainless Steel Fountain with 120° Auto-Flow Sensor and 4000 mAh Battery

- Auto flow on approach — a 120° infrared sensor starts the pump when your pet steps up, and stops when it leaves. Water runs only when it is being drunk.
- 4000 mAh rechargeable battery — place it anywhere: no cable across the floor, roughly 4.5 hours to a full charge over USB-C.
- 3.2 L stainless tank — the largest of the range, food-contact surfaces in 304 stainless steel.
- 6-layer filtration — resin softens the water, activated carbon takes out odour, mesh and cloth catch hair.
- Sensor, timed or continuous — pick auto-sensing, a 15-minute interval, or constant circulation, depending on the pet.
Auto Flow the Moment Your Pet Steps Up
A 120° infrared sensor watches the bowl. When a cat or dog comes into range the pump starts; when it walks away the pump stops. Water is only moving when it is about to be drunk — cleaner, and far less pump wear.
4000 mAh Battery, No Cable
A 4000 mAh cell runs the fountain without a cable, so it can sit in a hallway or on a balcony where there is no socket. A full charge takes about 4.5 hours over USB-C.
6-Layer High-Efficiency Filtration
Filter mesh and filter cloth trap hair and food crumbs, ion-exchange resin softens hard water, and activated carbon removes chlorine and odour before the water reaches the bowl.
304 Stainless Steel, Built to Be Washed
The bowl and tray are 304 stainless steel; the parts lift out individually so each one can be rinsed or put in the dishwasher. Nothing is glued shut.
Three Ways to Run It
Auto-sensing for a single cat, a 15-minute interval for a household that is out all day, or continuous circulation for pets that drink constantly. Switch modes without extra parts.
3.2 L — the Big Tank
The largest capacity in the range, sized for two cats or a cat and a dog. Fewer refills, and the low-water level still leaves the pump covered.
Full Technical Specification
Capacity, material, modes, power and packing data for the YS-3, exactly as confirmed by the factory.
Frequently Asked Questions
How does the sensor decide when to pump?
A 120° infrared sensor covers the approach to the bowl. Motion inside that arc starts the pump; once the pet leaves, the pump stops and the fountain goes back to standby.
How long does the battery last on one charge?
It depends on the mode. Auto-sensing, where the pump only runs while a pet is drinking, is by far the lightest on the battery; continuous circulation is the heaviest. We can quote run times for your mode mix.
Can I leave it plugged in permanently?
Yes. It runs from USB-C, so it can stay on the charger and use the battery as a backup during a power cut.
Does it work for a dog as well as a cat?
Yes — the bowl is 3.2 L and the sensor arc is generous, so it suits cats, small dogs and medium dogs.
Do you offer OEM / private label?
Yes. Custom logo, packaging and manual from 300 units per model — request a quote with your target market.
Compare with other Pet Water Fountains
Four fountains, one pump platform. Pick by tank material, by power and by whether you want auto-flow sensing.
| Feature | YS-1-1 | YS-2 | YS-3 | YS-4 |
|---|---|---|---|---|
| Capacity | 2.2 L | 3 L | 3.2 L | 3 L |
| Body | Transparent PC | 304 stainless | 304 stainless | Food-grade PC |
| Water modes | Fountain / faucet | Gooseneck faucet | Sensor / 15 min / continuous | With / without faucet |
| Auto sensor | — | — | 120° | 120° |
| Power | USB 5 V | USB | 4000 mAh + USB-C | USB 5 V |
| Pump noise | 25 dB | 20 dB | Ultra-quiet | 20 dB |
| Units per carton | 20 | 20 | 20 | 18 |
Specifications
| Capacity | 3.2 L (3200 ml) |
|---|---|
| Material | 304 stainless steel bowl and tray, ABS body |
| Water modes | Auto sensor / 15-minute interval / continuous |
| Sensor | 120° infrared, auto start and stop |
| Battery | 4000 mAh rechargeable, about 4.5 hours to full charge |
| Charging | USB-C |
| Pump noise | Ultra-quiet, sleep level |
| Filtration | 6-layer — mesh, cloth, ion-exchange resin, activated carbon |
| MOQ | 50 units per model — mixed models and mixed cartons welcome |
| Lead time | Up to 1,000 units ship now; Over 1,000 units in 7 days |
| OEM / ODM | From 300 units per model — logo, packaging, manual and colour |
| Certificates | CE / RoHS / FCC / UKCA |
| Ships from | Shenzhen, China |
Packing & Freight
| Colour box size | 23.5 × 23.5 × 12 cm |
|---|---|
| Units per carton | 20 pcs |
| Carton size | 63 × 49 × 49 cm |
| Gross weight per set | 1036.1 g |
| Net weight per set | 791.6 g |
| Carton gross weight | 22.3 kg |
Compare with other Pet Water Fountains
Where the YS-3 fits in the range
The YS-3 is the battery flagship: 3.2 L, stainless steel, a 120° auto-flow sensor and a 4000 mAh cell. It is the SKU for buyers whose customers want a fountain that works without a cable across the floor.
It sits above the YS-1-1 and YS-2 in price and below nothing in capacity — the largest tank in the range — so it anchors the top of a fountain assortment alongside the YS-4.