Your cat can't tell you something's wrong. Their litter can.
TellTail changes color the instant your cat's urine pH drifts out of the healthy zone — turning the litter box into a daily, no-stress health check.
One glance tells you what a lab test would.
TellTail granules are infused with a vet-formulated pH indicator. Where your cat goes, the litter reads — and the color maps directly to a health zone.
Extreme
Dangerously acidic — an urgent vet visit.
Worse
Below normal and acidic. Worth a vet chat.
Normal
The healthy range. A balanced bladder.
Worse
Above normal. An early flag for crystals or UTI.
Very bad
Severely alkaline — call your vet promptly.
Drag to see a reading.
This is exactly how the litter behaves. Move the slider to simulate your cat's pH and watch the color — and the advice — change in real time.
TellTail pH simulator
Normal sits between 5.5 and 7.0. The further outside the range, the more it's worth acting on.
It works the way litter already does.
Pour & go
Fill the box like you always do. TellTail clumps and controls odor like a premium clay litter — the chemistry is invisible until it's needed.
Your cat does the rest
The moment urine touches the granules, the indicator reacts to its pH — in under a second, with no powders, strips, or apps to fuss with.
Read the color
Green means all clear. Any drift toward red or violet is your early heads-up to keep watch — or call the vet before it's an emergency.
Urinary disease is common, costly, and quiet.
Cats hide pain by instinct. By the time symptoms show, problems are often advanced. pH shifts show up first — which is exactly what TellTail is built to catch.
cats develop a urinary issue in their lifetime.
of feline urinary conditions involve a measurable pH change.
average head start owners gain by spotting it early.
"Most urinary emergencies I see could have been a routine visit. A daily pH cue at home is one of the simplest early-warning tools a cat owner can have."
Feline Internal Medicine · TellTail Veterinary Advisor
TellTail pH-Sensing Litter
Ultra-clumping, low-dust, lightly scented — and the only litter that flags a health change the day it happens. Choose a plan:
The litter that earned its place.
"It turned blue on a Tuesday. Vet found early struvite crystals on Wednesday. We caught it weeks before Milo would've shown a single symptom."
"Honestly thought it was a gimmick. It clumps better than my old brand and I get a daily peace-of-mind check for free. Both my cats are on it now."
"As a senior-cat owner this is exactly the kind of low-effort monitoring I needed. Low dust, barely any scent, and the subscription means I never run out."
| Ordinary litter | TellTail | |
|---|---|---|
| Clumping & odor control | ✓ | ✓ |
| Low dust, lightly scented | ✓ | ✓ |
| Flags pH changes instantly | — | ✓ |
| Early urinary-issue warning | — | ✓ |
| No strips, powders, or apps | ✓ | ✓ |
Everything you'd want to ask.
Give your cat a voice you can read.
Join 30,000+ cat parents who turned the litter box into the easiest health check in the house.