Measurement range: 4 to 400pm Scale range: 20 to 200ppm Suction count: 1/2, 1 (standard), 2, 3, 4, 5 times Number of measurements for one box: 10 times Expiration date: 36 months from production Temperature and humidity correction: None Interference gas: chlorine, nitrogen dioxide,等等 检测限制:1 ppm(在吸入的5倍) 主题气体:臭氧 目标气体:臭氧 执行期(年):3 width(mm):147 depth(mm):54 高度(mm):19