Feature 13 in 1 Testing: Comes with 0.05usv-50msv wide measuring range of radioactive substances, the geiger counter can also detect temp and humidity. 2Alarm Function: Supports easy manual setting on the threshold valve, this nuclear radiation detector is equipped with automatic alarm function. 3Better Display: 2.8in HD digital display has low power consumption, together with the back bracket, the date viewing and reading is much easier. 4With ABS Shell: The casing is mainly made of premium ABS material, which is durable with pressure, falling and wearing, offering good protection. 5Flexible Using: Can be widely used in detecting domestic nuclear radiation, industrial nuclear radiation, treatment nuclear radiation and more.Item Type: Nuclear Radiation DetectorModel: YF 8603Power Supply: Built in 5V lithium battery 2000mAh. Measurement: For radioactive material, temperature, humidity. Measuring Range of Radioactive Substances: 0.05usv-50msvDisplay: 2.8in HD color display. Scope of Application: For domestic nuclear radiation, industrial nuclear radiation, medicine nuclear radiation, etc. . Package List1 x Nuclear Radiation Detector1 x User Manual1 x Charging Cable