1With large clear digital display, the readings could be easily seen even if in dark or sunshine when to turn on the back light function. 2Onehanded operation, easy to move for onsite measurements, effectively identify the signal source and locate the signal position. 3With data viewing, saving and output functions, it can meet the needs of various work scenarios. It can measure nuclear radiation and electromagnetic radiation. 4The large screen displays the temperature and humidity conditions at the same time and provides more information at the same time. 5With timing shutdown, threshold alarm function. High sensitivity, wide measuring range and long service life. The body is small and easy to operate. Item Type: Nuclear Radiation DetectorMaterial: ABSColor: As shown in the pictureModel: JD-3001Battery Type: 3.7V lithium battery (built-in)Battery Capacity: 2600mAhOperating Temperature: 0~ 50Operating Humidity: Relative humidity 10%RH ~ 80%RHNuclear Radiation:Response Time: 3sDose Rate Response: