Review on Enhanced Outdoor Version of RADEX RD1503 Dosimeter: Unlimited Particle Detection by Charles Collier

This is my second radiation detector. Put the first one at home. I wear this second one as an EDC. I am the captain of an international airline. I carry a radiation detector with me so I know how much radiation I've absorbed while flying the polar route. After many flights, I discovered that the radiation does not actually depend on latitude, but on altitude. In fact, the higher the altitude of the aircraft, the more radiation we are exposed to. I suggest everyone try to get a radiation detector just in case something happens. On May 11, 2011, when the Fukushima nuclear disaster happened, the price of a radiation detector suddenly increased fivefold, and after a few days, all eBay or Amazon marketplaces became unavailable. Just like now, in May 2020, after the 19 spread, all the thermometers on the market have disappeared.