Any idea what I can expect from the larger one? I'm guessing both will be like a freshly charged "glow in the dark" strip. I'm pretty sure I won't be able to walk around a dark room using just light from the markers, but can they be seen from across a yard, or street, for example?

I have no idea. Depends on the quantity of tritium, quality of the phospherous (Iknow this isnt spelt right) coating etc

The small one is a bit biggerthan the one I have experience with. About 1.5 inches. I have walked around at night using it.

Its like using a half flat battery with a LED and it gave the colour of the glow inthe dark hands of my Seiko watch. but the colour will depend on the phosphorus used.
Enough light to walk around with but you had to hold it close to make out details.

Had to be there, its hard to explain, but I was impressed with the amount of light from its size.

Edit:
I had another look at the Website before I closed it, and I realised I was working on overall dimensions. The size of the small one is about the size I was dealing with.

See this article: http://www.lightpanel.com/comparison/tritiumpress.htm and note the part about the $2,500 fine for improper disposal and the sentiment that the amount is too low to be effective.

There were some old CPF threads citing code sections that you missed, however the new CPF software's search function doesn't currently index old threads. I do know from experience that most vendors (including US vendors) of tritium products refuse to sell to US consumers. The exemptions are limited to specific products like wristwatches: http://www.nrc.gov/reading-rm/doc-collections/cfr/part030/part030-0015.html

Finally, those markers make some sense for portable devices, but for light switches it's cheaper and more practical to just use those translucent switches that have little neon lamps inside. Yes they stop glowing during power outages, but the lights won't be powered either, so finding the switch isn't that helpful. And exit signs should have some battery powered lighting to illuminate the way to the exit, so they don't need tritium.

Heh. Look. I've quoted the relevent NRC (Nuclear Regulatory Commission) regulations, which I consider to be the authority on this. The manufacturer is apparently ok with it, and LabSafety.com is selling them without additional verification or paperwork. Let's take this to PM if you insist on spreading the FUD.

I believe the post on CPF also metioned that a form did need to be filled out to register the location where the markers will be located.

We'll see, I guess. The order confirmation said there was a "15 day manufacturer lead time", so hopefully I'll get "fresh" tritium. <img src="/images/graemlins/smile.gif" alt="" />

I'm curious what counts for a location. What if I mount these in an RV? <img src="/images/graemlins/smile.gif" alt="" /> I'm also curious if, after I've filled out the paperwork, NRC reps are going to show up 5 years from now and demand to inspect the installation.

OK, the current story is that you got an order confirmation with 15 days lead time, not a shipping confirmation. I'll believe labsafety shipped you those things when you post here that they're actually in your hands.

As for the brightness, yes, you should be able to see around a dark room with the bigger ones, once you are night adapted. It's not that they're insanely bright but rather that night vision is amazingly sensitive. There is a type of "flashlight" called a betalight which is basically a small circular version of those tubes in a portable package.

Here ya go... Just arrived via UPS ground.

The markers themselves:




Their packaging (and keep in mind, there was no padding in the envelope):




And the docs that came with. There is NO paperwork included that I have to fill out. Nothing to send back, or off to anyone. Nothing that would report an intended use or a fixed location. Nada.
(Click for readable version)



I'll post a more detailed review later. Off to work.

Excellent! Thanks.