Scale range: 0.2 to 20 ppm Number of suctions: 3 times (standard) (300ml), 1 time (100ml) Measurement time: 6 minutes, 2 minutes Comment: 1, 3.3 Discoloration: White → Brown Temperature and humidity correction: None Target gas: Benzene Target gas: Benzene Effective period (年):2 宽度(mm):147 深度(mm):54 高度(mm):19 测量范围(ppm):0.2至66