Features High Quality Material: The Geiger counter is made of high quality ABS material, which is sturdy and durable to ensure long term use. Easy to Read: The Geiger counter can be digitally displayed and equipped with a backlight for easy reading. Easy to Operate: Geiger counter has timing shutdown, threshold alarm function, simple operation. Multifunctional: Geiger counter has data viewing, saving and output functions. Meet the needs of various work scenarios. Multi Display: The screen displays temperature and humidity conditions at the same time, providing more information at the same time. Specification: Item Type: Geiger Counter Material: ABS Model: JD-3001 Battery Type: 3.7V Lithium Battery (Included) Battery Capacity: 2600mAh Operating Temperature: 0℃~ 50℃ Operating Humidity: Relative Humidity 10%RH ~ 80%RH Nuclear Radiation: Response Time: 3s Dose Rate Response: <±20% (1μSv/h~99.99mSv/h) Energy Response: <±30% (48KeV~1.3MeV) Relative Inherent Error: <±15% Electromagnetic Radiation: Unit: Electric Field: V/M; Magnetic Field: μT Accuracy: Electric Field: 1V/M; Magnetic Field: 0.01μT Alarm Threshold: Electric Field: 50V/M; Magnetic Field: 0.3μT Measuring Range: Electric Field: 1V/M ~ 1999V/M; Magnetic Field: 0.01μT ~ 999.99μT Purpose: Intelligent Instrument That Can Measure Nuclear Radiation and Electromagnetic Radiation Applicable Scenarios: Construction Engineering, Industrial Environment Monitoring, Medical Environment Monitoring, etc. Package List: 1 x Detector 1 x USB Cable 1 x Manual  1 x Tool Box Package List 1 x Detector 1 x USB Cable 1 x Manual 1 x Tool Box