Wide Applications: This tester can be applied to material inspection, environmental test, radiopharmaceutical screening, etc High sensitivity, wide measuring range, has a long service time, you do not need to change it often Using of sophisticated G-M tube as the detection sensor, the detecting data be more accurate Compact and portable, you can put it into your pocket to carry easily. The operation interface is simple and clear, easy to use, giving you a better experience, Manufacturer: Ounfhtrttk