Best Pet Urine Detectors of 2025

"I used to have an old-style UV light that was mostly stolen. I was looking for a replacement because I have over 30 uses for it. From checking for AC leaks to cleaning carpets, walls, and anything else, this UV light has proven to be very versatile. I've even used it to cure a windshield chip repair, and it works exceptionally well. The size is just right, and the light intensity is good even in bright daylight. The batteries seem to have a long lifespan, as I've used it for an extended period without any issues. In my opinion, every household should have one of these UV lights. They are incredibly useful for cleaning toilets and ensuring that no spot is missed."

"I bought this UV flashlight primarily to find scorpions in the summer here in Arizona! It's powerful and easy to use, and the scorpions glow brightly under the black light. I feel much safer knowing I can spot them. I use it in my bedroom before bed, shining it everywhere—on the walls, under the bed, and even in the bed. If you've ever been stung by a scorpion, you know why I am extra cautious. Pro tip: if you see a scorpion, do NOT smack it with a shoe. Mama scorpions carry their babies on their backs, and if you smash a mama, you'll scatter the babies everywhere."

"The Vansky UV Flashlight has been a lifesaver for finding hidden messes from my dog! The 51 LED blacklight is incredibly bright, making it easy to locate even the smallest urine stains on carpets and furniture. I was amazed at how much it revealed that I would have otherwise missed. It's lightweight, easy to handle, and runs efficiently without draining the batteries quickly. Beyond pet stains, I've also used it to check for cleanliness in hotel rooms and even spot scorpions on outdoor trips—talk about versatility! This flashlight is a must-have for any pet owner or anyone who wants a cleaner living space. Highly recommend it!"

"As a pet owner, I needed something to help identify potty spots on the carpet. The Vansky blacklight works great for this purpose and is made of good material. Its design fits comfortably in my hands, and I appreciate that it came with fresh batteries!"

"I found this little blacklight to be quite compact and effective even in not completely dark rooms. It performs well on solid surfaces, but I noticed it tends to pick up on tiny pieces of lint when used on fabrics. Nevertheless, I'm getting a lot of use out of it!"

"I bought this flashlight specifically to spot pet urine stains, and it has been perfect for that need. The rug hides it well, and unless stepped on when wet, it’s hard to find the stains otherwise. Overall, I'm very happy with my purchase!"

"I have a special needs adult male in my household, and I find myself scrubbing the bathroom daily due to urine not hitting the bowl. I thought I was thorough, but the smell persisted. I got this flashlight to investigate, and it works great! It shines bright enough to reveal spots in the dark bathroom. I discovered urine stains on the walls and even on the toilet paper holder—yikes! I wasn’t aware that white grout glows under black light. Now I plan to buy more for our vacation home and consider gifting them for Christmas. I hope my review helps others!"

"I let my daughter bring her two dogs over on the weekends, and the male Schnauzer tends to mark everything. After she leaves, I use this flashlight to quickly identify the new markings. It works best at night with the lights off, but it’s still effective during the day."

"I am amazed at how powerful this light is for just $10! It shines bright enough to light up a room in daylight! I caution anyone to avoid looking directly into it; it could damage your eyes! This is definitely not a toy! It has revealed that my carpet isn’t as clean as I thought, showing me where my cat has vomited. I'm considering hiring a professional cleaner now. This light is definitely a steal for its power and brightness!"

"I have two older dogs who sometimes have accidents. I was smelling urine but couldn't find the spots until I got this powerful flashlight. It's sturdy, takes 6 AA batteries, and has clear instructions. Once I shined the light on the rugs, I found the stains immediately. Without it, I never would have discovered those spots!"

"I ordered this black light to locate my puppy's potty accidents. It really works, but I found that I had to hold it close to the floor to see the results clearly. It's a useful tool for pet owners!"

"While looking for lost golf balls, my friend and I used this black light, and it was incredibly effective. We found 265 balls easily, even spotting one in a tree! I loved it so much that I ordered my own after that experience."

"I have tried several flashlights, including the Braun from Harbor Freight and a Hobby Lobby light, but this one is by FAR the most powerful. It makes uranium glass and custard glass glow beautifully. I replaced the batteries with good-quality alkaline ones, and I carry it everywhere for thrifting and antique mall visits. Highly recommended!"

"I ordered this to pre-test items for a black light party, and it worked perfectly. It even came with batteries, which was a nice touch. I was super happy with this find!"

"This handy light is a lifesaver for my sneaky Chihuahua's urine problem! It shows urine very well and is fairly bright. It’s been an effective tool for my carpet cleaning projects. I'm relieved to finally see where the messes are!"

"I recently bought the COSOOS 2 Pack UV Flashlight, and I couldn't be happier! These 12 LED handheld blacklight flashlights are perfect for my yard sale adventures. I keep one in each car to easily spot uranium glass and hidden treasures. The UV light is powerful, and the compact size makes them easy to carry. I've used them several times, and they’ve never let me down. If you enjoy yard sales or antique hunting, I highly recommend this great value pack. Five stars all the way!"

"I was pleasantly surprised that the price included two lights! They feel well-made and sturdy. The smaller size is perfect for my pocket or purse, and the light is bright and effective. I would definitely recommend these!"

"I needed a UV light to check my rock collection, and one flashlight is great—nice and bright. However, the other one only gives off half of the light. I tried swapping batteries, but it didn’t help. Still, I'm really happy with the bright one."

"I bought this UV flashlight to locate where my cat was spraying, and it worked perfectly! It's small, portable, and very effective for pet owners. I highly recommend it!"

"When I first saw this flashlight, I thought it would be too small to do the job. I was pleasantly surprised by its performance. It's compact, easy to use, and charges up quickly. I even tested it on glow-in-the-dark items, and it worked better than expected!"

"I noticed some negative reviews, but it worked fine for me. Just remember that you need a totally dark environment to see the results. This black light helped me identify sources of smell in my home."

"I've found that this black light works exceptionally well. I'm amazed at how it reveals stains on kitchen walls that I couldn't see before. It even highlights lint and fibers on my rugs and sofas. It's especially effective in dark rooms, and I'm glad I made this purchase!"

"This little black light is just what I needed for my two rescued kitties. It's compact and easy to handle, unlike my previous one. I can quickly identify where my cat has sprayed and spot clean right away. So far, it works great!"

"When my cat developed a urinary issue, I was worried about the lingering odors in my home. Thanks to this handy light, I can easily find where to apply cleaning products. The visibility in the dark is incredible, and I appreciate that it came with batteries!"

"As a pet owner, I found the GEARLIGHT UV Flashlight to be an invaluable tool for detecting urine stains left by my pets. The 68 LED blacklight illuminates hidden stains, making it easy to identify and treat problem areas."

"I bought this flashlight to investigate some strange odors in our home office, and it helped determine that the smell wasn't my dogs. The light is bright and revealed areas where I had missed cleaning, which was both surprising and a bit contentious with my wife!"

"This flashlight is perfect for night crawler hunting. The price of worms is ridiculous right now, but this light helps locate them easily without startling them. It's been a great investment for my fishing needs!"

"This light does exactly as advertised; it charged my discs quickly for a tournament and keeps them at an optimal brightness. I almost bought the larger model, but this one fits perfectly in my bag and does a great job. I highly recommend it for glow tournaments."

"I purchased this flashlight to activate the glow in my tumbler designs, but it also revealed unseen stains on my carpet. I was shocked to discover that it looked like every dog in the neighborhood had been in my living room! The light works great for my needs and more."

"Living in southern California, especially in a rural area, I often encounter scorpions at night. This blacklight flashlight is a must-have! It makes scorpions glow brightly, making me feel more at ease while walking my dog at night. The only downside is that it uses six AA batteries, which is a bit much, but overall, I've been very satisfied with its performance."