Reply To: Urine detector? Home › Welcome to the ADDitude Forums › For Spouses & Loved Ones › Urine detector? › Reply To: Urine detector? October 17, 2020 at 2:11 am #186301 IChoseMyUserNameParticipant Hi, blacklight is good, but if toilet and floor are white it’s hard to see. If you have a little rug w/o a nap (flat) Good luck!