Features: Portable Size: This handheld nuclear radiation detector with portable size and easy to carry, you can put it into your bag to carry and hold it to use. Wide Applications: This radiation tester can be widely used in nuclear power plant, accelerator, iron steel industry, chemical industry, isotope application, industrial X and r non-destructive flaw detection, r radiation, radioactive laboratory and surrounding environment monitor of nuclear facilities. Large Display Screen: This nuclear radiation detector adopt large LCD display screen for you to read the detecting data clearly and easily, you can get the results in time. Easy to Operate: You can enter the setting interface by one button and then close the tester to object to get the result. Two Data Display: This tester can display real-time measurement and the five-minute average. Three selective alarm modes: sound, light and text prompt, it display the safe ranges or exceed the range, you can long press the button for 3 seconds, text prompt will appear.