Features: Accurate and reliable measurement of ionizing radiation levels. Measures radiation levels, temperature, and humidity with a measurement range of99.99usv/h and a resolution of 0.001usv/h. Suitable for nuclear workers, radiation monitoring personnel, and environmental protections agencies for radiation pollution monitoring and assessment. Perfect for nuclear power plant to ensure a safe working environment and for research institutions, hospitals, and laboratories conducting radiation experiments and studies. With its large LCD display, this device provides intuitives information on radiation levels, temperature, and humidity, while also featuring an alarm function for exceeding preset thresholds. Specifications: Material:ABS Size:10.5x7x3cm/4.13x2.75x1.18inch Color:White/Black Model: XR1 Pro Measuring range99.99usv/h Measurement object: nuclear radiation temperature and humidity Measurement accuracy: 0.001usv/h. Resolution: 320x240 Package Includes: 1x Electromagnetic Radiator Tester note: ①.Please allow 1-2cm errors due to manual measurement, make sure that you do not mind before you order. ②.Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thanks for your understandings.