BR-9C Specifications: Material: ABS Color: yellow Model: BR-9C Screen size: 57 * 43mm / 2.2 * 1.7in Electromagnetic radiation test: Test range: Power density: 0-99.999μw/cm2 Electric field intensity: 0-999.99v/m Magnetic field intensity: 0-99.999μT Test accuracy: Power density: 0.001μw/cm2 Electric field intensity: 0.01v/m Magnetic field intensity: 0.001μT Frequency range: Power density: 50MHz-5GHz Electric field intensity: 20Hz-100MHz Magnetic field intensity: 20Hz-1MHz Nuclear radiation test: Sensor type: energy compensation type GM tube Detectable types: Beta, Gamma, X-ray Energy range: 20kev~3.0mev≤±30%(137Cs-) Sensitivity: 80cpm/μsv/(Co-60) Test accuracy: 0.01μsv/h Real-time range: 0-99.99μsv/h Cumulative range: 0-99.999msv Real-time error: ≤10% Mean error: ≤3% Battery: 3 * AA 1.5V battery or 3 * 1.2V rechargeable battery (not included) Charging: USB 5V 2A input Charging time: ≥4 hours Item size: 105 * 70 * 30mm / 4.1 * 2.8 * 1.2in Item weight: 105g / 3.7ounce Package size: 150 * 100 * 55mm / 5.9 * 3.9 * 2.2in Package weight: 169g / 6.0ounce