QIUSUO Nitrogen Dioxide Detector NO2 Gas Detector with Measuring Range 0-20ppm Resolution 0.1ppm L-Alarm 5ppm H-Alarm 10ppm Accuracy ≦ 5% F.S. for NO2 Gas Leakage Detection

QIUSUO NO2 Gas Detector Nitrogen Dioxide Leak Detector with 0-20ppm Resolution Ratio 0.1ppm L-Alarm 5ppm H-Alarm 10ppm Advanced MCU Control Working Time≧8h Continuously

QIUSUO NO2 Gas Detector Handheld Nitrogen Dioxide Concentration Tester with Range 0-20ppm Resolution 0.1ppm L-Alarm 5ppm H-Alarm 10ppm Water-proof Explosion-proof

QIUSUO Nitrogen Dioxide Gas Detector Portable Nitrogen Dioxide Gas Leak Detector with Measuring Range 0 to 20ppm Resolution 0.1ppm Accuracy ≦ 5% F.S. Low Power Consumption