VTSYIQI Portable O3 Detector Ozone Gas Detector with 32-bit Built-in MCU High Reliability and Self-adaptation Ability Measuring Range 0-20ppm Resolution 0.01ppm L-Alarm 5ppm H-Alarm 10ppm for Petroleum Chemical Environmental Metallurgy

VTSYIQI NOX Gas Detector Portable Nitrogen Oxide Detector with Measuring Range 0-20ppm Resolution 0.1ppm L-Alarm 5ppm H-Alarm 10ppm Gas High-Sensitivity Sensor for Petroleum Chemical Environmental Protection

VTSYIQI NOX Gas Detector Handheld Nitrogen Oxide Gas Detector with Resolution 0.1ppm Measuring Range 0-20 ppm L-Alarm 5ppm H-Alarm 10ppm Accuracy ≦±5%F.S. Excellent Sensitivity and Outstanding Reproducibility for Metallurgy Refining Ects

VTSYIQI Nitrogen Oxide Detector NOX Gas Detector with Gas Pump Sampling Method Measuring Range 0-20ppm Resolution 0.1ppm High-Sensitivity Sensor Data Records Store Data Records L-Alarm 5ppm H-Alarm 10ppm Accuracy ≦±5%

VTSYIQI Nitrogen Oxide Gas Detector Portable NOX Detector with Accuracy ≦±5% F.S. L-Alarm 5ppm H-Alarm 10ppm Resolution 0.1ppm Gas Pump Sampling Method Measuring Range 0-20ppm LCD Display 3200m

VTSYIQI PH3 Gas Detector Handheld Phosphine Gas Detector with Measuring Range 0-20ppm Resolution 0.1ppm L-Alarm 5ppm H-Alarm 10ppm Gas Pump Sampling Method Accuracy ≦±5% F.S. 1200pcs Data Records Store Data Records

VTSYIQI Phosphine Gas Detector Portable PH3 Gas Detector with Resolution 0.1ppm Accuracy ≦±5% F.S. Measuring Range 0-20ppm L-Alarm 5ppm H-Alarm 10ppm Gas Pump Sampling Method 32-bit Built-in MCU CSTN Colorful LCD

VTSYIQI Phosphine Detector Handheld PH3 Gas Detector with Measuring Range 0-20ppm Resolution 0.1ppm L-Alarm 5ppm H-Alarm 10ppm Gas Pump Sampling Method for Petroleum Chemical Environmental Protection Metallurgy Refining

VTSYIQI PH3 Gas Detector Phosphine Detector with Gas Pump Sampling Method Measuring Range 0-20ppm Resolution 0.1ppm L-Alarm 5ppm H-Alarm 10ppm 32-bit Built-in MCU for Petroleum Chemical Environmental Metallurgy

VTSYIQI Portable Phosphine Gas Detector PH3 Gas Detector with Gas Pump Sampling Method Measuring Range 0-20ppm L-Alarm 5ppm H-Alarm 10ppm Resolution 0.1ppm Accuracy ≦±5% F.S. for Petroleum Chemical Environmental Metallurgy

VTSYIQI PH3 Detector Phosphine Gas Detector with Measuring Range 0-20ppm L-Alarm 5ppm H-Alarm 10ppm Gas Pump Sampling Method Resolution 0.1ppm 32-bit Built-in MCU High Reliability and Self-adaptation Ability

VTSYIQI C2H4O Gas Detector Portable Ethylene Oxide Detector with Measuring Range 0-100ppm Resolution 0.1ppm L-Alarm 10ppm H-Alarm 20ppm Gas Pump Sampling Method High-sensitivity Sensor Accuracy ≦±3% F.S.