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4.7
One bag lasts a whole month.

Health signal

Health Signal

Health Signal

Cat litter

  • Color changes to help you spot potential health issues
  • Odor control that actually works – no added fragrance
  • Dust-free and minimal dispersion outside the bin
  • Ultra-absorbent, non-clumping, with an anti-bacterial formula
  • Suitable for all litter boxes

Temporary 20% Welcome discount + 14% Extra discount with monthly delivery.

  • Free shipping from 4 bags within NL
  • Ordered before 2 p.m., shipped the same day
Vet-recommended & lab-tested

Trusted by experts - safe, clean and developed with care

This is what our
customers say

Read here what other customers think of us.

More honest reviews

Still smells fresh with two cats

“I used to notice the smell as soon as I walked in. Not anymore. And I don’t have to clean as often either.”

- Yasmin

Super satisfied with Catcheck

"We switched to catcheck's pellets and are really super happy with them!"

- Ingrid

Still smells fresh with two cats

“I used to notice the smell as soon as I walked in. Not anymore. And I don’t have to clean as often either.”

- Yasmin

Works just fine with my robot box

“I wasn’t sure it’d be compatible, but it works great. The color change still shows up clearly.”

- Lisa

No more litter trails

“She used to track litter all over the place. This one stays where it belongs.”

- Sophie

Total upgrade from regular litter

“I used to buy whatever was on sale. This is just... smarter. You can really tell.”

- Norwegian

Veterinary assistant see the...

"I definitely recommend this product! To sport faster problems and therefore treat them early..."

- Maaike

Total upgrade from regular litter

“I used to buy whatever was on sale. This is just... smarter. You can really tell.”

- Norwegian

Caught it just in time

“My vet said if I’d waited, it could’ve gotten worse. The litter’s color change is the only reason I noticed.”

- Emma

I wouldn’t have noticed otherwise

“My cat seemed totally fine, but the litter suddenly changed color. Turned out it was a mild UTI. So glad I caught it early.”

- Sarah

Still smells fresh with two cats

“I used to notice the smell as soon as I walked in. Not anymore. And I don’t have to clean as often either.”

- Yasmin

Works just fine with my robot box

“I wasn’t sure it’d be compatible, but it works great. The color change still shows up clearly.”

- Lisa

No more litter trails

“She used to track litter all over the place. This one stays where it belongs.”

- Sophie

Total upgrade from regular litter

“I used to buy whatever was on sale. This is just... smarter. You can really tell.”

- Norwegian

More honest reviews

Frequently Asked Questions

Health Signal is made from silica gel, a mineral-like material also found in products like food packaging and toothpaste. It’s completely safe for cats, even if they lick it. The granules contain tiny pores that instantly absorb urine and lock in odors, keeping the litter box cleaner for longer, without clumping, or smelling. No perfumes, no dust clouds, no worries, just smart, hygienic cat care.

After each pee, the crystals usually show one main color in one spot. Yellow to olive green? All good. If you see red, orange or blue-green that doesn’t fade within 48 hours, it’s smart to check in with your vet. No stress, just a clever way to spot changes early.
Yes, and surprisingly well. While most non-clumping litters don’t work with automatic boxes, Health Signal does. Solid waste is still removed by the system, and the urine is absorbed deep into the crystals. The surface stays dry, odor-free, and color changes remain visible. So you still get your health insight, even with a self-cleaning setup.
Because Health Signal turns your litter box into something smarter. It doesn’t just hide odors, it absorbs faster, lasts longer, and gives you real-time health insights every time your cat pees, all throughout the day. One color, one signal, continuous clarity. No clumps, no dust, no stress. Just smarter care, built into your routine.
Some cats need a little time to adjust, and that’s completely normal. To help with the transition, start by mixing Health Signal with their current litter and gradually increase the amount. The formula is scent-free, low-dust, and soft on paws, so most cats feel comfortable quickly. With a bit of patience, almost all cats make the switch with ease.
  • High absorption rate
  • anti-bacterial
  • Natural material
  • Ph detection
  • High absorption rate
  • anti-bacterial
  • Natural material
  • Ph detection

Compare with other products

Health signal

Life of 1 bag
4+ weeks

  • Health Monitoring
  • Little dust & dispersion
  • Advanced odor control
  • Non-clumping formula

Clay

Life of 1 bag
Up to 2 weeks

  • Health Monitoring
  • Little dust & dispersion
  • Advanced odor control
  • Non-clumping formula

Vegetable

Life of 1 bag
Up to 2 weeks

  • Health Monitoring
  • Little dust & dispersion
  • Advanced odor control
  • Non-clumping formula

Health signal

Life of 1 bag
4+ weeks

  • Health Monitoring
  • Little dust & dispersion
  • Advanced odor control
  • Non-clumping formula

Clay

Life of 1 bag
Up to 2 weeks

  • Health Monitoring
  • Little dust & dispersion
  • Advanced odor control
  • Non-clumping formula

Vegetable

Life of 1 bag
Up to 2 weeks

  • Health Monitoring
  • Little dust & dispersion
  • Advanced odor control
  • Non-clumping formula

Early signals health problems

Our color-changing crystals alert you to changes in your cat’s urine that may indicate an underlying health problem. From urinary infections to stress-related issues or even blood in the urine, Health Signal helps you catch it early. No guessing, just daily peace of mind.

Early signs of health issues
Clean order free

Less smell, less shoveling, and low-maintenance

Health Signal absorbs urine instantly and locks in odors without using perfume. No clumps, no sticky mess, no unpleasant smell when you open the box. Whether you scoop by hand or use an automatic litter box, it stays fresh and hygienic with minimal effort.

Stays neatly in the bin, 
– just a clean home

Our low-dust granules don’t stick to paws or fur and stay where they belong: in the litter box. That means no trail of litter on your floor and no clouds of dust. Ideal for sensitive cats – and for people who like a clean home.

No tracking no dust

Recommended by veterinarians

In many cats, a bladder infection often lurks undetected. With Health Signal, replace your cat litter with our smart, lab-tested variety. This litter reacts instantly to abnormalities in urine and colors for pH fluctuations or blood traces, so you recognize problems early. Fill the bowl, swirl the pellets and give your cat the care he deserves.

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