Feature:1. EXCELLENT PERFORMANCE: Measuring nuclear radiation, sensing sensitivity, ensuring the accuracy of measurement results. Detection range is 00.08 μ Sv/h to 9999 μ Sv/h.2. MULTI TESTING: β, γ and X ray combined radiation testing. One machine for more, very practical equipment.3. ALARM FUNCTION: Geiger counter provides audible and visual alarms if radiation is detected. Allowing you to make response in time.4. EASY TO USE: With rechargeable battery, charging work of the nuclear radiator detector can be done through USB or car charger.5. SMALL AND LIGHTWEIGHT: Nuclear radiation monitor can detect the radiation level of any object or environment at any time, such as detecting radiation from toys, antiques, building materials, furniture, decorations, food, etc.Specification:Item Type: Nuclear Radiation DetectorMaterial: ABSBattery: Polymer battery x 1Battery Capacity: 400mAh (shipped with built in battery)Detection Count: 48mm Geiger counter tubeMeasurement Range: 00.08 μ Sv/h to 9999 μ Sv/hReacting Speed: Operate within 10 seconds, arrive a stable value within 2 minutesRefreshing Frequency: 1 second per timeWorking Environment: -10 to 50 ℃;Display: 0.96 inch TFT HD LCD display screenHumidity: Less than or equal to 95% RH without condensationDetection Ray Type: γ ray, X ray, β rayRange: 15 to 24 hoursSuitable for Various Scenarios: Home, hospitals, nuclear power plants, laboratories, processing enterprises, metallurgy, etc..Package List:1 x Tester 1 x USB Cable 1 x Manual Note:Please use a standard DC5V power supply for charging.