F fxstsb Newly Enlightened Joined Jan 21, 2008 Messages 193 Location Home of the Georgia Cracker Feb 18, 2008 #1 I use two Extechs. What I read is that they don't really work below 400nm. What do you use? Does it have a lower spec?
I use two Extechs. What I read is that they don't really work below 400nm. What do you use? Does it have a lower spec?
Hitthespot Flashlight Enthusiast Joined Oct 15, 2007 Messages 1,662 Location Mentor, Ohio Feb 20, 2008 #2 Mine is pretty heavy. On a serious note, sorry your not getting any reponses to your post.
SilverFox Flashaholic Joined Jan 19, 2003 Messages 12,449 Location Bellingham WA Feb 20, 2008 #3 Hello Fxstsb, I believe below 400 nm is below the visible range of light. To read light in the ultra violet range you need a spectrum analyzer. The low end of my EA-30 is around 475 nm. Tom
Hello Fxstsb, I believe below 400 nm is below the visible range of light. To read light in the ultra violet range you need a spectrum analyzer. The low end of my EA-30 is around 475 nm. Tom