Measurement range: 0.5 to 20% Scale range: 1 to 10% Supply count: 1/2 times, 1 (standard), 2 times Number of measurements for one box: 10 times Effective period: 36 months from production Temperature and humidity correction: None Detection limit: 0.1% (at suction twice) Target gas: carbon二氧化碳 测量范围:0.5至20% 目标气体:二氧化碳 有效期(年):3 测量范围(PPM):0.5至20%