Scale range: 1 to 20 ppm Number of suctions: 2 times (200ml), 10 times (1000ml), 1 times (standard) (100ml), 1/2 times (50ml) Measurement time: 1 minute to 5 minutes, 30 seconds Coefficient: 1/2 to 1/10, 1, 2 Discoloration: Yellow → Reddish purple Temperature and湿度校正:湿度 靶气:硝酸 适用的气体:硝酸 有效期(年):3 宽度(mm):147 depth(mm):54 高度(MM):19