I've read that the blacklights do not detect older stains. Is this true?
1111784
I found an older stain but it did look a little splotchy and faint... there was also a puddle a few days old but it fluoressed (spelling?!) brightly!
1111785
The backlight detected a stain that I think was probably a couple of weeks old. Just got the cat fairly recently so that was probably the oldest spot in the house.
1111786
I had an older stain from a previous pet that only would smell when you close the door on the room for an extended period of time. The black light showed what i suspect are old urine spots on the carpet. These spots were noticeable fainter than the newer (last month or so) spot of former cat puke i checked. Sunglasses/eye protection as they recommend definitely helped make the stains stand out.
1016404
Hi Mary, We are still working on sourcing the yellow glasses, but I can assure you it is not entirely necessary to have them to spot pet stains.I will ensure to update the listing when I have sourced them.
215975
I suppose if you use thick black marker you can see it. Our barrel was light and you could see the wine stains. We stained it a natural color. Hope that helps!
1686710
First, I'm sure you have, check the battery; and then press in the small "button-like" impression on one side, once for steady flashing and twice for blinking ... it can be hard to press it in. They do work wonderfully though ... we have an all black dog and live on some acreage and in the dark, she's easy to see. Good luck.
1909463
Mine detects the games itself, but the only games it works with is Diablo 3 and Mass Effect 2. It crashes multiple games in my steam library. For all other games the lights just stay at the same color. I'm happy there are only 6 of these left in stock at the time I'm writing this. Hopefully Amazon won't order more because this is a terrible TERRIBLE product.
11960
I didn't clean mine since they were bright enough and I have not noticed them getting dark at all.
1296149
Yes. If u r close to the ground and lights off, u will see all fluid stains.
1619796
No, the pet urine detector black light cannot detect the urine smell, but I believe this item could find any urine stains on your artificial grass. I find that this item works best in darkness. Good luck! I hope this helps.
1609127
No, I don't think it will. I spoke to a company representative, and was told that after treatment the odor would be removed, but the stain might still be seen with a black light. I don't know how it can be removed, but I was concerned with odor, and it is gone!
2272122
No, actually another product that I bought on Amazon worked to clear the dark age-spots. Check my other reviews.
1880
I have made sure the room for mine is dark and the urine stains (and other stains) are dried. This is when it starts forming the fluorescence crystals that make it show up. If the urine or stain is still wet, the crystals that will fluoresce under this wavelength will not show up as the the neonish yellow/green or brighter white (colour depends on the stain / fluid type as well as how long it has set).
1713119
It would depend upon where the stain is. Even though it neutralizes urine there may be a residue or lighter stain to the NAKED EYE. My guess is that if you used a black light on carpeting there would probably be a ligher stain to show where the original problem was. Good luck.
52276
Yes. It absolutely works. The stains will return over time but just use it again. The stains disappear right before your eyes.
844958
Not directly, but it will illuminate the debris trails they leave behind. So, in that sense, the light can "detect" their presence at some time in the past. Bedbugs themselves are not luminescent.
1992943
I haven't had black spot issue. But it did work well on a yellowing problem I had with the leaves. It might well be worth a try.
437243
Yes ive tried to get out old stains that are about 5-6 months old. They appear to be gone but they keep coming back. I've tried everything. Even shampoo carpet. Came back.
1828117
I wish I could help you. Mine is black and of course it doesn't show the dirt.