Measurement range: 0.02 to 0.20 ppm Airflow speed and flow rate: 100 ml/min Measurement time required: 30 minutes Comment: 1 Discoloration: White → Orange brown Temperature and humidity correction: Temperature Expiration date: Up to 2 years Subject gas: Nitrogen dioxide Target gas: Nitrogen二氧化物(连续吸力类型) 到期期(年):2 宽度(mm):147 深度(mm):54 高度(mm):19 测量范围(ppm):0.02至0.20至0.20