The Best Best Black Light To Detect Cat Urine References. Web many reviewers have reported success in detecting cat urine; For this reason we advise that you try black light urine “hunting” in the evening.

Once you find the spot, neutralize the urine with an enzyme. Some people find it easier to spot urine with a blacklight at night. The waklyte pet urine detector is powered by 3 aaa batteries (not included).