Correction of kerosene and gasoline Number of suctions: 1 time (standard) (100ml) Measurement time: 45 seconds Target gas: Unknown gas qualitative (for fire ca investigation) Target gas: For fire ca investigation Effective period (year): 3 Width (mm): 147 Depth (mm): 54 高度(mm):19 测量范围(PPM):不适合定性使用