尿液監測水晶貓砂（酸鹼值檢測）

I was pleasantly surprised how long the litter stays fresh—no odors for over a week. The color-changing pH detection gives me peace of mind, even if my cat is a bit messy.

My cat took to this litter immediately, which is rare for her, and the pH color shift is subtle enough that I can actually read it before scooping. Three weeks in, the odor control is holding up better than any crystal litter I've tried before.

The color-changing crystals are actually pretty easy to read, which makes tracking my cat’s urine pH way less of a chore. It fits the litter box perfectly and the freshness lasted a good week before I noticed any smell.