| type of measured rays | α βrays |
| detector | ZnS、plastic scintillator |
| displaying unit | total counting、cps |
| background: | ≤0.005min-1cm-2，βbackground ≤0.15min-1cm-2 |
| efficiency | αdetecting efficiency:≥80 % (239Pu 2π) |
| βdetecting efficiency | ≥50 % (90Sr-90Y 2π) |
| stability | detecting efficiency ofα<10 %，detecting efficiency of β<3 % |