Feature:1. 2 in 1 Testing: Comes with 0.00~9999SV/h wide measuring range of radioactive substances, the Geiger test counter can detect hard and X rays.2. Alarm Function: Supports sound and light alarm, this nuclear radiation detector is equipped with alarm function, also very quick in sampling.3. Better Display: Large digital display has low power consumption, together with the accurate counting tube, both testing and reading are easy.4. With ABS Shell: The casing is mainly made of premium ABS material, which is durable with pressure, falling and wearing, offering good protection.5. Flexible Using: Can be widely used in detecting domestic nuclear radiation, industrial nuclear radiation, treatment nuclear radiation and more.Specification:Item Type: Geiger CounterMaterial: ABSDetection Ray: X and RayMeasurement Range: 0.00~9999 SV/hSampling Rate: 0.5SSensor: Geiger Counter TubeAlarm: Sound and light alarm. Power Supply: 2 x 1.5V AAA, which is not included. .Package List:1 x Geiger Counter1 x Screwdriver1 x Storage Bag1 x User Manual