BestForPets is reader-supported. Your purchases via our links may earn us an affiliate commission at no extra cost to you. Our Affiliate Disclaimer

The 11 Best Blacklights For Finding Cat Urine Stains

There are occasions when cats urinate outside of their litter box. We want to keep our houses pee and odor-free, whether it's on carpeting, rugs, hard surfaces, furniture, or clothing.

Cat urine has a strong odor that lingers and stinks up the house. Because cats like to urinate in solitude, it might be difficult to find where they have urinated, especially if it has already dried.

Thankfully, blacklights can assist you in locating any filthy spots so you can get your property cleaned up and smelling great again.

BestForPets (bestforpets.org) scoured the reviews to compile a list of the best blacklights for finding cat urine stains.


Best Overall: PeeDar 2.0 UV LED Flashlight Urine Detector

Our top pick for the finest overall blacklight for detecting cat urine is the PeeDar 2.0 UV Flashlight Dry Urine Detector.

This light shines anywhere there is invisible pet urine. This light works well indoors, both in the dark and in low light.

The PeeDar 2.0 is powered by three AAA batteries that are included in the package, so you can start using it right away. It is easily portable and even water-resistant.

An eBook titled Understanding & Resolving Unwanted Toilet Habits is also included in the purchase. A few consumers did report issues with functionality shortly after purchasing.


uvBeast V3 Cat Urine Blacklight – Premium Option

The uvBeast V3 Blacklight for Cat Urine is our top recommendation for locating cat urine. This blacklight is powered by a rechargeable lithium-ion battery with a battery life of roughly 4 hours.

The uvBeast V3 is small and light, with the ideal nm for detecting cat urine.

The manufacturer claims a range of up to 60 feet, and many reviews are impressed by its blacklight’s considerable range.

The uvBeast V3 is significantly more expensive than the competition, and several users have complained that the light itself has a short lifespan and does not last as long as planned.


BLACKLIGHT DARKBEAM Kitten-Friendly Ultraviolet Flashlight

Because of its cat urine detection skills, the compact and lightweight Darkbeam Blacklight Ultraviolet Flashlight is our choice for kittens.

This little light is powered by a single AA battery. This light can be used in natural light, although it performs best in low-light environments with minimum light leakage.

The focus of the Darkbeam Blacklight can be adjusted by zooming in and out.

According to the reports, the light was not sturdy enough and had a short lifespan for overall use. It is compact, light, and convenient, at a very reasonable price.


Alonefire X901UV Cat Urine Blacklight

The Alonefire X901UV Blacklight for Cat Urine is a strong UV flashlight with a 365NM intensity that is ideal for detecting cat urine.

The Alonefire is powered by a single rechargeable lithium-ion battery, which is included in the price together with the charging cable. With this purchase, you will also receive a pair of safety glasses.

The mediocre construction, according to reviews, is the UV flashlight’s main flaw. Many people complained about long-term durability difficulties and felt it should have been designed better.


Anipaw Cat Urine UV Black Light

The Anipaw UV Black Light For Cat Urine is a high-quality light with a wavelength range of 385nm to 395nm.

This LED UV lamp aids in the detection of urine and other stains on carpet, ceramic tiles, hardwood floors, and other household linens.

According to the reviews, the Anipaw is of high quality and highly bright, allowing it to detect pee stains from a greater distance than other products.

Many reviewers have reported success in detecting cat urine; nevertheless, the nanometer intensity is slightly greater than is normally advised for cat urine detection.

Buyer's Guide: Choosing The Best Blacklight for Detecting Cat Urine Stains

What Is the Function of a Blacklight?

A blacklight is designed to emit ultraviolet (UV) light that is visible to humans.

Fluorescent compounds absorb ultraviolet light and re-emit it at a different wavelength, making the light visible to the human eye.

The blacklight will cause substances detected to glow.

What Becomes Visible Under Blacklight?

Blacklights are most typically used to detect biological fluids such as urine, blood, and sperm.

All of these bodily fluids include fluorescent chemicals, which cause them to glow under a blacklight even when they are invisible to the naked sight.

Under black light, vitamins like thiamine, riboflavin, and niacin will sparkle. Under black light, some laundry detergents and cleansers, tonic water, anti-freeze, and even scorpions can be seen.

Is it true that all blacklights detect cat urine?

Unfortunately, not every blacklight will be effective at detecting cat urine. Check the wavelength of the UV light emitted by each product.

Typically, the optimal wavelength for detecting cat urine is between 365nm and 385nm.

Avoid blacklights that employ LEDs with a wavelength of 390nm or higher.

While some people have reported success with greater wavelength blacklights, it is better to buy a light with the specified nanometers to increase your chances of effectively detecting cat urine.

Reasons Why Cat Owners Need a Blacklight

Identifying the Source of Displeasant Odors

If you have cats or other domestic pets, you will undoubtedly encounter a situation in which your home emits an animal-related odor.

Cats may go to the restroom outside the litter box for a variety of reasons.

The pungent odor of cat urine is unmistakable, whether it is from a male claiming their territory or any feline household member going outside the box for any reason.

You must locate the cause of the urine odor in order to adequately clean it. The trouble with locating the source is that cats like to relieve themselves in secret.

Unlike dogs, they will venture into smaller, more secluded spots to relieve themselves.

A blacklight can assist you in locating the places that have been saturated with urine so that you may properly clean and erase the stink.

Preventing Additional Urination/Marking

It is crucial to know that the smell of earlier urination may encourage your cat to urinate in that location again. To prevent future incidents, any filthy area must be thoroughly cleaned.

It is essential that you choose a cleaner that is intended to completely eradicate cat urine to avoid any leftovers.

Before You Purchase

Not all UV urine detector lights are created equal, so choose one that is appropriate for your needs.


The upfront cost is always a problem, depending on your budget and condition. You want a blacklight that will provide you excellent value for your money.

The cost of a blacklight varies substantially. Some of the most durable, high-powered lights may be more expensive. If you frequently have to look for pee stains, it may be worth the extra cost.

If you are on a tight budget or do not intend to use the light regularly, a less expensive light may be preferable.


As previously stated, you should keep an eye on the wavelength of the blacklight before making a purchase. UV lights that are effective for dog urine may not be effective for cat urine.

It is ideal to use a blacklight with a wavelength of between 365 and 385 nanometers to detect cat urine.


Blacklights are available in a variety of sizes and weights. While some are small, portable, and lightweight, others might be much larger and heavier to transport.

The size is up to you, but make sure it meets all of your requirements.


As you can see, different types of batteries power different types of blacklights. Today’s list included items powered by rechargeable lithium-ion batteries, AAA, and AA.

Some people prefer rechargeable choices since they save them visits to the shop when they run out of AAA or AA batteries.

Given that your blacklight is being used to detect cat urine in the house, having disposable batteries may not be a big deal. If you have one, this is entirely up to you.


The PeeDar 2.0 UV Flashlight Dry Urine Detector is an excellent solution for cat owners seeking for a blacklight that is specifically built for detecting feline urine.

The uvBeast V3 Blacklight for Cat Urine is more expensive, but it has received rave reviews from customers.

This gadget features a broad range and a rechargeable battery for convenience.

You should be well on your way to locating the source of those unpleasant scents and getting them cleaned up once and for all now that you know what to look for when choosing a blacklight for your cat urine detection requirements and have some insight into what other cat owners have to say.

In the end, we appreciate that you chose BestForPets (bestforpets.org) among dozens of other websites to learn about the best blacklights for finding cat urine stains.

Hopefully, this article has assisted you in selecting the best product for your pet.

Author Image

Dr. Deborah Fletcher

Deborah R. Fletcher, DVM, is a skilled veterinarian with more than 15 years of experience dealing with companion and exotic animals. She has experience caring for a variety of animals, including household cats and dogs, reptiles, birds of prey, and even primates. Dr. Fletcher is a valuable part of the BestForPets team, where she contributes to their aim of providing pets and their owners with the finest possible treatment and services.

Veterinarian (DVM) Dr. Deborah Fletcher


Rated 0 out of 5
0 out of 5 stars (based on 0 reviews)
Very good0%

There are no reviews yet. Be the first one to write one.

Related articles