sampler. i would be sampling the air i'm breathing in. jon: does it give off a warning some kind of a i alarm if too much radiation is taken in. >> these take samples. jon: they monitor, they don't warn? >> you use a secondary device. jon: these things have basically gone flying off the shelves since this japan thing? >> yes. we have no von. we're working on inventory night and day right now. jon: and you made special shipments obviously to the west coast and parts of japan that need them? >> yes, yes, absolutely. jon: keith, appreciate it. thanks for showing us your material and good to have you and paul here. paul, thanks very much. >> thank you. jon: good ol' american innovation, right? >> that's right. jenna: i will keep a few cards for you, jon, just in case. have them on set, you never know, right? jon: in case things get dicey on the 17th floor. jenna: thank you to radko for bringing in all the stuff to look at. certainly many sides of the