ROTEM RAM ION Radiation Survey Meter

Measuring Range : 1 ¼ Sv/ hr to 500 mSv/ hr ( 0.1 mR/ hr to 50 R/ hr) Display Range : 0.1 ¼ Sv/ hr to 500 mSv/ hr ( 0.01 mR/ hr to 50 R/ hr) Accuracy : ± 10% of reading within measuring range Gamma Energy Dependence ( 137Cs) : Better than ± 20% at 20keV to 1.3MeV Angular Dependence ( 137Cs) : Less than ± 5% ( for ± 120o of front direction) Ion Chamber Volume : 500 cc Chamber Wall and Cover Thickness : 300mg/ cm2 ( tissue equivalent) Window Thickness : 7 mg/ cm2 Response Time : 2 sec. for readings above 1 mR/ h 5 sec. for auto-ranging change, from Low to High Range Power Source : Two 1.5V C-type Alkaline cells - 100 hours of continuous operation Display : DigiLog ( 3 digits and 2 decades of analog bar graph) Data Logging : 347 data records ( 1415 with extended memory) Temperature Range : Operation: -10oC to + 50oC ( 15oF - 122oF) Storage: -20oC to + 60oC ( -5oF - 140oF) Humidity Range : Up to 95% RH ( non condensing) Dimensions : Width: 10cm ( 3.9 " ) , length 25cm ( 9.8 " ) , height 19cm ( 7.5 " ) Weight : 1, 100g ( 2.4lb) Casing : High impact ABS