Feature:1. SENSITIVE AND ACCURATE: The use of geiger muller tube counter can measure nuclear radiation, sensitive induction, to ensure the accuracy of the measurement results. Detection range from 0.08uSv‑50mSv2. BETA GAMMA X RAY MONITOR: Combined beta, gamma, and X ray radiation detection, providing audible and visual alerts if radiation is detected3. BATTERY POWERED: The nuclear radiation detector includes rechargeable batteries, can be charged via USB or car charger4. COMPACT AND LIGHTWEIGHT: The pen designed geiger counter can detect radiation levels on any object or in any environment at any time, such as toys, antiques, building materials, furniture, decoration, food, etc.5. SCRATCH RESISTANT ABS: Personal dosimeter adopt excellent ABS material, possess impact resistance, scratch resistance, environmentally friendlySpecification:Item Type: Nuclear Radiation DetectorMaterial: ABSBattery: 1 x Lithium polymer battery, Battery Capacity: 150mAhDetection Range: 0.08uSv-50mSvSensor: 48mm Geiger counterWorking Environment: Temperature: -20℃~50℃; Humidity: <95%RH No condensationBattery Life: 50 Hours(continuous measurement, screen sleep)Charging Time: 2 ~ 3 HoursCharging Interface: Type C interface(green light steady on when charging, full off).Package List:1 x Detector1 x USB Cable1 x User Manual