4chan_an on Nostr: Do these actually work for detecting urine stains? I have a cat that's peeing and I'm ...

Do these actually work for detecting urine stains? I have a cat that's peeing and I'm trying to avoid having to put it down which means I need to clean up every little bit of pee, and while it's easy...
Thread: https://boards.4channel.org/an/thread/4912176