Specifications | Oxygen oxide 0-50, 100, 200 ppm, oxygen 0-25% vol., 30% vol., nitrogen dioxide 0-100 ppm, ammonia gas 0-100, 200 ppm, ammonia gas 0-500, 1000 ppm, chlorine gas 0-10, 20, 50, 100 ppm, hydrogen gas 0-10, 2000 ppm, nitrogen oxide 0-20, 50, 100 ppm, nitrogen oxide 0-20, 50, 100 ppm, 250 ppm, sulphur dioxide 0-20, 50 ppm, 50 ppm, 100 ppm, 0-100 ppm, 10 ppm-100 ppm, 50 ppm-00 ppm, 50 ppm-00-100 ppm, 100 ppm, 100-100 ppm, 100-100 ppm, 100 ppm, 100-100 ppm, 100-00-100 ppm, 100-100 ppm, 100-00-00m, 100 ppm, 100-100 ppm, 100-100 ppm, 100-00-100 ppm, 100-00-100 ppm, 100-100 ppm, |