I like it. The value isn't in telling you something happened, but in telling if you are in a fallout path or contamination zone. And if so, whether you are getting away from the radiation by taking cover. I wish it had a dosiometer function to show total accumulated dose. You can survive relatively high levels of radiation for a short period of time. Eberline pager-sized dosiometers appear on Ebay from time to time. I wonder how this compares to them feature-wise?

Steve
_________________________
"After I had solaced my mind with the comfortable part of my condition, I
began to look round me, to see what kind of place I was in, and what was
next to be done"