Description PORTABLE DESIGN: Radiation detector uses a 48mm Geiger counter tube, which can detect the radiation level of any object or any environment at any time.Such as radiation detection, antiques, materials, furniture, food, etc.Small volume and the clip design is easy to carry HIGH DETECTION PERFORMANCE:Ultra-fast detection with small measurement error margins,geiger radiation-hardened detector detects X-ray instantly,with real-time updates of radiation dose data and interval averages second ULTRA-HIGH SENSITIVITY:Radiation detector measured and calibrated by metrology institute,with high data accuracy.When the dose rate radiation dose exceeds the ,an audible and flashing alarm will automatically sound LOW ENERGY CONSUMPTION-OLED DISPLAY:Built-in powerful rechargeable lithium battery,the radiation detector only needs to be for 2-3 hours,and the display can continue to measure continuously for 50 hours after automatic sleep when working. color:White Material:ABS Package Contents: 1 x Nuclear Radiation Detector 1 x USB cable 1 x English manual Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the a little different from the real thing. The measurement allowed error is +/- 1-3cm.