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I have offered them to people here before for the price of postage but I am yet to find anyone that wants any. My box came to me shipping included and was very inexpensive, so I’m happy to share,...

I have not had any plastic scale issues.
I just have the emitters from Lee Valley. I have different sizes for different places. Three in the display case. One in the safe and one in each gun cabinet.

They have a fairly lengthy life span. The emitters I have here are five years from opening. I expect the papers are longer. When I bought a box of paper it was giant. I have given away a ton of it...

Paper and emitters in use here.