INSPECTOR Plus Digital Radiation Survey Meter

Internal Halogen-quenched, uncompensated GM tube with thin mica window, 1.4-2.0 mg/ cm2 areal density. Effective diameter of window is 45 mm ( 1.75 in.) Operating Range mR/ hr : .001 ( 1¼ R) to 100 mR/ hr CPM - 0 to 350, 000 ¼ Sv/ hr : .01 to 1000 CPS - 0 to 5000 Total/ Timer : 1 to 9, 999, 000 counts Accuracy : mR/ hr ± 10% typical ( NIST) , ± 15% max - 0 to 100 ¼ Sv/ hr ± 10% typical ( NIST) , ± 15% max - 01 - 1000 CPM ± 10% typical ( NIST) , ± 15% max - 0 to 350, 000 ( Referenced to Cs-137) Alert Set Range : mR/ hr .001 - 50 and CPM 1 - 160, 000 Power Requirements : One 9-volt alkaline battery. 2160 hours at background Weight : 301.4 grams ( 10.6 oz.) without battery Size : 177.8 x 95.3 x 39 mm ( 7 x 3.75 x 1.5 in.)