This is almost my tenth dosimeter in my life. I bought the first ones back in the 80s, after Chernobyl. In terms of capabilities, it is similar to the Japanese air counter from the ebay site, but on a different, better sensor. And the operating time from one battery is much longer than that of the Japanese. You can also compare it with a coex of a similar size, but I didn’t hold it in my hands. Definitely this is now my favorite model, constantly on duty. I live where it can be useful :) I find fault with recording readings in vain, this function can be required in devices with a price two to three times higher. For example, Quantum from Soeks. I love that model too. In addition, I have an older model from Radeks, the ISS with separate registration of gamma and beta, but that one should only be used "sighting", on purpose. And this is convenient to keep in the house constantly on.
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