Measurement range: 25 to 1600 ppm Scale range: 50 to 800 ppm Suction count: 1/2 times, 1 (standard), 2 times Number of measurements for one box: 10 times Expiration date: 36 months from production Temperature and humidity correction: None Interference gas: Sulfur dioxide, nitrogen dioxide,等 检测极限:5 ppm(两次吸力) 目标气体:硫化氢 目标气体:硫化氢 执行期(年):3 测量范围(PPM):25至1600