Features 【High Sensitivity】: The hand-held portable nuclear radiation detector adopts imported sensor processor, which has high sensitivity, high precision and fast response speed. 【Clear display】: EMF Meter adopts liquid crystal display with three measurement units: uSv/h, uGy/h, and mR/h. The working status of the nuclear radiometer is clear on the display screen, and you can quickly and accurately read the data you need. 【Real-time detection】: Real-time detection, fast measurement, real-time update of cumulative dose, simple and intuitive. Handheld portable design, easy to carry and store, can be tested anywhere. 【Automatic data storage】: Handheld household radioactive tester With automatic data storage function, even if the power is suddenly cut off, the data will not be lost and can be stored for a long time. 【Three Alarm Modes】: There are three alarm modes of sound, light and vibration, The nuclear radiation detector can remind you better and give you a better experience. Features: 1. The hand-held portable nuclear radiation detector adopts imported sensor processor, which has high sensitivity, high precision and fast response speed. 2. It adopts liquid crystal display with three measurement units: uSv/h, uGy/h, and mR/h. The working status of the nuclear radiometer is clear on the display screen, and you can quickly and accurately read the data you need. 3. Real-time detection, fast measurement, real-time update of cumulative dose, simple and intuitive. Handheld portable design, easy to carry and store, can be tested anywhere. 4. Handheld household radioactive tester With automatic data storage function, even if the power is suddenly cut off, the data will not be lost and can be stored for a long time. 5. There are three alarm modes of sound, light and vibration, The nuclear radiation detector can remind you better and give you a better experience. Specifications: Material: ABS Model: NR-750 Detection rays: X, Y and hard beta rays Dose equivalent rate: 0.01~1000μSv/h (maximum 10mSv/h) Cumulative dose equivalent: 0.01μSv~500.0mSv Energy response: 48KeV~1.5MeV≤±30% (for 137CS-) Relative inherent error: NR-750≤±15%(137CS1mSv/h) Language: English, Chinese Sensitivity: 80CPM/uSv (for Co-60) Alarm threshold: Dose rate: can be arbitrarily selected among 0.5, 1.0, 1.5, 2.0, 2.5, 5.0, 10.0, 50.0, 100.0μSv/h Cumulative dose: can be selected at 0.05, 0.5, 1.0, 2.0, 5.0, 10.0, 20.0, 50.0, 100.0mSv Power supply: 2 * AA batteries (not included) Packing size: about 172*126*36mm/6.8*5.0*1.4in Package weight: about 200g Packing list: 1 * Nuclear radiation detector 1 * Manual Package List