Features: High Range: Our nuclear radiation tester provides a broad measurement range from 0.05uSv/h to 10mSv/h, accurately detecting gamma and hard beta rays. Long-lasting Battery Life: Equipped with a large-capacity 400mAh battery, the device offers up to 10 hours of active screen time and 24 hours in standby mode. Customizable Alarm Settings: Set your desired alarm threshold with three distinct modes: sound, flash, and vibration, for personalized peace of mind. Real-time Monitoring: The multifunction interface displays real-time data including instantaneous dose rate, cumulative dose, and average dose rate, ensuring easy observation in diverse lighting conditions. Compact and Durable Design: Made from robust ABS plastic, the tester's lightweight and compact size (162x71x05MM) ensure portability and durability, perfect for field use. Specifications: Measuring Range: 0.05uSv/h~10mSv/h Testing: Gamma rays, hard beta rays Working Environment: -20~50°C Humidity: ≤95%RH (No condensation) Battery Capacity: 400mAh Battery Life: 10 hours on bright screen, 24 hours on standby mode Charging Time: 1 hour Charging Mode: USB-Type-C Product Size: 162x71x05MM Material: ABS Plastic Screen Size: 0.96" TFT color screen Optional Color: White / Black Package Included: 1 x Nuclear Radiation Tester (Color of your choice) 1 x USB-Type-C Charging Cable 1 x User Manual