Radiation Survey Meter; Manufacturer Warranty Length 1 yr; Battery Voltage 9V; Number of Batteries Required 2; Calibration Certificate Type NIST; Battery Chemistry Alkaline; Battery Run Time 100 hr; Beta Energy Sensitivity 100 keV; Maximum Dose Rate 500 uSv/hr; Minimum Dose Rate 0 uSv/hr; Digital Display Screen Type LCD; Display Type Digital; Measuring Units mR/hr; R/hr; uSv/hr; Battery Size 9V