More than other nuclear radiation detector, wide measuring range, has a long service life. 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 detection, substation detection, mobile signal tower detection, etc. It can also be applied to inspection, environmental test, radiology protection, radiopharmaceutical screening, etc. With mute, alarm, particle sound button, test, mean value reset retest 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: , , X-ray Energy range: 20kev~3.0mev less than 30%(137Cs-) Sensitivity: 80cpm/sv/(Co-60) Test accuracy: 0.01sv/h Real-time range: 0-99.99sv/h Cumulative range: 0-99.999msv Real-time error: less than 10% Mean error: less than 3% Temperature and humidity detection Electromagnetic radiation detection: Test range: S 0-99.999 w/cm (power density) E 0-99.999 V/M (electric field strength) H 0-99.999 T (magnetic field strength) Test Accuracy: S 0.001w/cm (power density) E 0.01 V/M (electric field strength) H 0.001 T (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: 4 hours Colour:yellow :plastic Package Contents: 1 x Nuclear Radiation Detector(without battery) Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the a little different from the real thing. The measurement allowed error is +/- 1-3cm.