Features: Portable Size: This handheld nuclear radiation and electromagnetic radiation detector with portable size and easy to carry, you can put it into your bag to carry with you and grip it to use. 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. Chinese and English operational interface switchable. Easy to Operate: The instrument enjoys a high flexibility and can measure the environmental background. Real-time measurement and display of dosage rate and accumulative dosage. Multifunctional Design: Permanent data storage upon power cutoff. Low power consumption and battery under-voltage indication function. Three Selective Alarm Modes: sound, light and vibration prompt. The instrument can preset the alarm value of dosage rate and accumulative dosage. Wide Applications: This radiation tester can be widely used in nuclear power plant, accelerator, iron steel industry, chemical industry, isotope application, radioactive laboratory and surrounding environment monitor of nuclear facilities.