Black light For Cat Urine – More than just urine finder!

Black_light_and _cat_urine

We all have seen these television shows like “CSI”, which investigate crimes using UV lights to find blood and all kind of body fluids. Well, you can use the same technique to find your pets preferred spot for peeing when you’re not at home. That UV light would be a cool cleaning gadgets to have. Yes, a black light for cat urine will help detect the spot they always go to, because you can’t always see it with your naked eyes.

Will a black light really work to detect cat urine? It does, but not all black lights will. I’ve been in the cleaning business for the last 30 years and a black light is a tool I use frequently when visiting a potential new client. I show them what their bathroom looks like, more specifically what their cleaner neglects. So yes, a black light really works.

Black light and cat urine, how does it work?

First, let’s start by understanding the light spectrum. Our eyes don’t see all the colors that surround us. We only see a small amount of the existing color spectrum, more specifically the range of 400 to 700 nm. Outside of that range, you have the ultraviolet and infrared lights.

Most human or pet body fluids will glow under the right light range. Some need to be dried, while others not. For cat urine, the best method is dried but it will also react if wet.  Dry is better because it forms tiny crystals that break the light and the ultraviolet range will stand out under the UV light. However, all body fluids with high protein content will also glow under black light, making it easy to detect.

What can I detect with it?

If you are a clean freak, using a black light to verify if you missed any spots just might drive you nuts. I know in the field of industrial or commercial cleaning, I use this type of UV flashlight to find out if my staff neglect bathrooms or even dust in specific areas. Let me tell you that when I use it, they are not very happy!  The fact is, it doesn’t matter how clean you are, you will always miss a spot.

Besides using your black light for cat urine, you can detect all sorts of things.

Such as:

  • Cat/dog urine
  • Human urine
  • Saliva
  • Soap residue
  • Blood stains
  • Certain juices and sodas
  • Coffee stains
  • Stains on light switches and doors
  • Dust

Actual images

Stain on door
Dust on baseboard
Dust on baseboard
Dust on Chrome canister
Dust on Chrome canister
Coffee stain on filling cabinet
Coffee stain on a filing cabinet
Urine residu on toilet bowl
Urine residue on a toilet bowl
Stains on switch
Stains on switch


A cool gadget for home if you want to check up on your maid

If you have a maid or use the services of a cleaning lady, and you have doubts about the quality of her services, you can always use these types of black light to find out what she missed. Simply go through your kitchen or bathroom with a black light before she arrives at your place, and be very thorough.  Once she is gone, do another checkup and you’ll know right away if the does the job right or not.

So now you know what a black light for cat urine can do. It truly is more useful than you ever imagined.

Are all the black lights for urine the same?

Beware when you buy the black light flashlight or lamps as they are not all the same.  The difference is all in the range of the light. If you buy one that is too close to the visible range, which is pretty much what we normally see, it will not detect everything.

The best range to aim for is 365nm or lower, since closer to 400nm is the range we normally see.

There is also another factor to take into account. The amount of LED in the black light flashlight. The more the better. You can find some with 9 up to 100 LEDs, however, the more LEDs usually mean a higher price.

No more secret spots cool_detective

Now you know a bit more about that famous black light for cat urine. It does more than you thought at first and can be a cool cleaning gadget to have at home or work. You can find these in various places, but remember the important specifics when buying these flashlights.

You have to buy one with a range of 365nm or lower for best results. The best amount of LEDs should be between 12 to 50.  Higher can be better but will come at a higher price. Some of them are sold with a yellow lens to protect your eyes from the UV, which is a good idea if you’re using it often.

From now on, your pets won’t be able to hide their famous spots from you. If you detect them right away and clean the urine stains properly, it will help training them to forget this particular area and go where they are supposed to go. It can also help you find out if they have potential health issues.

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