Features1EASY TO READ: The radioactive detector can be digitally displayed and equipped with a backlight for easy reading. 2 MATERIAL: The Geiger counter is made of ABS material, which is sturdy and durable to ensure long term use. 3PORTABLE DESIGN: The compact Geiger counter allows you put it inside the pocket and carry it with you, simple user interface, clear, user friendly. 4MULTIFUNCTIONAL: Nuclear radiation detector has data viewing, saving and output functions. Meet the needs of various work scenarios. 5MULTI DISPLAY: The screen displays temperature and humidity conditions at the same time, providing more information at the same time.SpecificationItem Type: Geiger CounterMaterial: ABS, LEDWeight: Approx. 169g/6.0ozEnergy Range: 20kev-3.0Mev30%137Cs-Sensitivity: 80cpm / usv / (Co-60)Test Accuracy: 0.01sv / hTime Range: 0-99.99sv / hTime Error: < 10%Average Error: < 3%Power Supply: 2 x AA Batteries (Shipped Without Batteries)Type of Detection: and X Rays DetectableScope of Application: Nuclear Radiation DetectionPackage List1 x Geiger Counter (Battery Not Included) 1 x Manual