UV Ultra Violet Permanent Security Marker Crime Prevention Pen [Single Unit]

Works surprisingly well and at a great price

I have used it on my grandsons birthday present a bike in case it gets pinched we can trace it. It seems fine but, I cannot say any more than that other than the writing disappeared (which is good I’m presuming so thieves cannot see it). I put the postcode on.

Very good

A brilliant kit, well made, very please

Works well

Got this stand sized UV pen for security marking electronic goods just in case. When you write on them you can see, just about, what you are writing which is useful and easy to use, but that never really faded. They are too obvious even when dry. Fine for marking the back of a TV but not sure about other products where maybe all faces are on show. Don’t have a UV light so it’s just trust that the UV function of these pens actually works. So it permanently marked the goods but not quite as subtly as I’d have liked. Test before writing somewhere obvious

As described no problems

Great

Funciona según lo esperado.

writes on almost all surfaces with small tip

Parfaitement conforme à la description. Le marqueur est fortement fluorescent avec de l'UV 365nm, un peu moi avec UV395nm, mais est parfaitement invisible à la lumière normale. Il tiens fortement sur la peau malgré de nombreux lavage, il est donc très indélébile ! (Voir photo UV365nm vs UV 395nm vs Jour)

Awesome product,I'll be back,I've purchased a few things from this seller and every time has been a 5 star rating which is difficult for me to give out

This felt tip pen is exactly as described and then some. The ink is nearly completely invisible to the naked eye. Unless someone is specifically looking for the writing with this pen they would never see it. I used it to make inconspicuous marks on some small property like little tools and such without ruining the look of items. With a small UV LED or other UV source I am able to see the words or writing vividly. I am quite impressed with the permanent ink, I was concerned I wouldn’t be able to remove it if I wanted to give away an item I had written my name on, I had to use rubbing alcohol a few times to finally get it off, but it wasn’t easy and took multiple passes and even then wasn’t fully gone. I am very impressed with the permanent ink portion of this pen and ordered 5 more this evening due to the high quality and the outstanding performance.