UVC Light Test Card for UVC Germicidal Wavelengths and Intensity Testing

works as expected

Bestens.

I bought this to test the UV claims of my ultrasonic cleaner and to see if the window above leaks UV. It worked very well and was worth the money for the piece of mind.

It’s smaller than I thought and reported it missing but found it later in the packaging. It is credit card size look out but looks good and works well

Seems to work well. I heard about these from a YouTuber, Big Clive, who uses them to qualify UVC germicidal lights. Purchased this one for the same reason, I had one I bought off eBay that claims to be UVC; it is NOT, but I would not have known this for sure without the card. A very valuable tool for ensuring safety!