More sensitive than other nuclear radiation detector, wide measuring range, has a long service life. Large screen display makes it easier to read data, and the buttons are easy to operate. The housing is made of fine quality ABS, which has fine heat resistance and cold resistance, high strength and fine toughness. Both electromagnetic radiation and nuclear radiation can be detected. It can meet the needs of home life detection, substation detection, mobile signal tower detection, etc. It can also be applied to material inspection, environmental test, radiology protection, radiopharmaceutical screening, etc. With mute, alarm, particle sound selection button, test, mean value reset retest selection button, backlight can be turned on or off. Model: XR3 Pro Screen size: 57X 43mm / 2.2 X 1.7in Nuclear radiation detection: Detection technology: G-M detection technology Detectable types: Beta, Gamma, X-ray Energy range: 20kev~3.0mev less than equal ±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: less than equal 10% Mean error: less than equal 3% Temperature and humidity detection Electromagnetic radiation detection: Test range: S 0-99.999 μw/cm² (power density) E 0-99.999 V/M (electric field strength) H 0-99.999 μT (magnetic field strength) Test Accuracy: S 0.001μw/cm² (power density) E 0.01 V/M (electric field strength) H 0.001 μT (magnetic field strength) Frequency Range: S 50MHZ-5GHZ (power density) E 20HZ-100MHZ (electric field strength) H 20HZ-1MHZ (magnetic field strength) Power supply mode: 3 * AA 1.5V battery or 3 * 1.2V rechargeable battery Charging: USB 5V 2A input Charging time: greater than equal 4 hours<br