Radiation Survey Meter Operating Range mR/hr-.001 (1uR) to 200mR/hr uSv/hr-0.1 to 2000 CPM-0 to 235 400 CPS-0 to 3923 Total Counts-1 to 999 000 Counts Gamma Radiation Range Detects Gamma down to 10-12 KeV Alpha Energy Sensitivity From 2.0 MeV Beta Energy Sensitivity From 50 keV Gamma and X-ray Energy Sensitivity From 10 KeV Accuracy Typically +/-15 Percent From Factory +/-10 Percent (NIST) Display LCD Display Units mR/hr uSv/hr CPM CPS Powered By AA Alkaline