NR-750 GMJ3 FS2011 Handheld Electromagnetic Radiation Detector Household Radioactive Tester Geiger Counter β Y X-ray Nuclear Detect                                                                          FS2011       FS2011 radiation individual alarm device is collocated with highly flexible Geiger counting pipes as detector; it is mainly responsible for monitoring the radiation of X, r and hard β ray in various radioactive work areas; it is featured as swift response and broad measurement scope, it is able to display the dosage equivalent rate and accumulative dosage in the work area; during the battery replacement, the calendar, time and accumulative data can be stored permanently; it is widely applied in the individual safety protections monitor and radioactive indication for work personnel in the following fields: 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.       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. Over Safety Value Alarm: The alarm value can be selected from 0.5, 1.0, 2.0, 2.5, 5.0, 10.0, 50.0, 100.0usv/h. You can choose the suitable value according to your needs. Easy to Operate: You can enter the setting interface by one button to adjust the alarm preset value then close the tester to object to get the result. The instrument can preset the alarm valves value of dosage rate and accumulative dosage. Two Data Display: This tester can display real-time measurement and accumulative dosage. Three selective alarm modes: sound, light and vibrations to better remind you.       Specifications:       Material: plastics Detection ray: X, r and hard β ray Measurement scope: Dosage equivalent rate: 0.01~1000 μSv/h (maximum: 10 mSv/h) Accumulative dosage equivalence: 0.01 μ Sv~500.0 mSv Energy scope: 50 keV~1.5 MeV ≤ ±30 % (as for 137 Cs I) Relative innate error: ≤ ± 15 % (137 CS 1mSv/h) Flexibility: 80 CPM/μSv/h (as for Co-60) Alarm valves: Dosage rate: Selection among 0.5, 1.0, 1.5, 2.0, 2.5, 5.0, 10.0, 50.0, 100.0μSv/h at disposal. Accumulative dosage: Selection among 0.05, 0.5, 1.0, 1.5, 2.0, 5.