How to Read Cat Urine pH with the Urine Monitor Crystal Litter Set
By PETKIT | Auto Litter Box, Smart Feeder, Water Fountain | Published: 2026-10-27
Category: Tips & Care
Learn to use the Urine Monitor Crystal Litter Set with your PETKIT Purobot Crystal Duo. This guide explains how to read color changes and track pH for early kidney health warnings.
Quick Answer
Use the Urine Monitor Crystal Litter Set in your PETKIT Purobot Crystal Duo and check the litter color daily—specific shades indicate pH levels that can signal early kidney or urinary issues.
Why pH Tracking Matters for Your Cat
Normal cat urine pH typically ranges from 6.0 to 6.5. Values outside this range can increase the risk of crystals or stones, which may lead to urinary tract infections or kidney problems. The crystal litter's color-changing formula gives you a simple visual cue without needing to handle urine samples.
This test is a screening tool, not a diagnosis. If you notice persistent abnormal colors, contact your veterinarian for a professional urinalysis.
How the Color Change Works
The litter granules contain a pH indicator that reacts to the urine's acidity or alkalinity. When your cat urinates, the granules change color—typically shifting toward yellow or orange for acidic urine and toward blue or green for alkaline urine. The exact color chart is provided with the product packaging.
Step-by-Step: Reading pH with the Urine Monitor Crystal Litter Set
- Set up the litter box: Fill the PETKIT Purobot Crystal Duo with the Urine Monitor Crystal Litter Set according to the manufacturer's instructions. Ensure the litter depth is consistent across the tray for accurate readings. Check that the litter is evenly distributed before your cat uses it.
- Wait for your cat to urinate: Allow your cat to use the litter box normally. The color change occurs within a few minutes of contact. Do not disturb the litter immediately after your cat leaves. Avoid scooping or mixing the litter right away to get a clear reading.
- Observe the color change: Look at the granules that came into contact with urine. Compare the color to the pH chart provided in the product packaging. Note the exact shade, not just whether it looks 'different'. Take a photo with your phone to compare colors over time more accurately.
- Track readings over time: Record the pH reading daily or weekly in a journal or app. Look for trends rather than single readings—a one-time deviation may be harmless, but a consistent shift is more concerning. If you see a persistent abnormal trend, contact your veterinarian.
- Replace litter as recommended: Follow the manufacturer's guidance for how often to replace the crystal litter. Overused litter may give false readings and lose its color-changing effectiveness. Set a reminder to replace the litter regularly to maintain accuracy.
Product Facts
- Urine Monitor Crystal Litter Set (pH Detection) - 4 Pack: Made for the PETKIT Purobot Crystal Duo automatic litter box, this crystal litter combines long-lasting freshness with intelligent health tracking. You can use it seamlessly with your existing automatic litter box without extra equipment.
Urine Monitor Crystal Litter Set (pH Detection) - 4 Pack - Urine Monitor Crystal Litter Set (pH Detection) - 4 Pack: Its color-changing formula reveals urine pH changes, helping you spot early signs of cat urinary risks right from home. This lets you monitor your cat's health daily without lab tests, catching potential issues early.
