VTSYIQI Hydrogen Fluoride Gas Detector Digital HF Gas Alarm Monitor with Measuring Range 0-10ppm L-alarm 3ppm H-alarm 5ppm Resolution 0.1ppm Display Screen for Combustible and Toxic Gas Leakage Detection in Underground Pipe or Mines

VTSYIQI Portable O2 Gas Detector Oxygen Analyzer with Range 0-30%vol Resolution 0.1%vol L-alarm 19.5%vol H-alarm 23.5%vol 1200pcs Data Records Accuracy ≦±5% F.S. Built-in Pump Display Screen for Detecting Gas in Many Industries

VTSYIQI Portable Oxygen Gas Detector O2 Gas Leak Alarm with Resolution 0.1%vol Range 0-30%vol L-alarm 19.5%vol H-alarm 23.5%vol Pump Sampling Method 32-bit Built-in MCU High-sensitivity Sensor for Testing Combustible Gas

VTSYIQI NH3 Ammonia Gas Detector Monitor NH3 Gas Leak Alarm Ammonia Gas Concentration Detecting Instrument with Measuring Range 0 to 2000PPm Resolution Ratio 0.1/1PPm for Fossil Oil Industry Gas Test

VTSYIQI Ozone Gas Detector O3 Gas Monitor with Measurement Range from 0 to 20ppm Resolution 0.1ppm for Petroleum Industry LPG Station Gas Test

VTSYIQI Ammonia Gas Detector Fixed Ammonia Gas Monitoring NH3 Gas Meter with Range 0-100ppm Resolution 0.1/1ppm for Gas Detection of Chemical Plant and Boiler Room

VTSYIQI HCN Gas Detector Hydrogen Cyanide Gas Detector Portable Fixed HCN Gas Leak Detector with Measuring Range 0-50ppm Resolution 0.1ppm for Detecting Gas in LPG Station Painting Plant

VTSYIQI Nitrogen Dioxide Gas Detector NO2 Gas Monitor Industrial Nitrogen Dioxide Gas Alarm Monitor with Measuring Range 0-20ppm Resolution 0.1ppm for Painting Plant and Metallurgical Industry Gas Test

VTSYIQI Nitrogen Dioxide Gas Detector Fixed NO2 Gas Meter with Resolution 0.1ppm Measuring Range from 0 to 20ppm for Detecting Gas in Refinery Chemical Plant LPG Station Boiler Room Painting Plant and Other Places with Gas Exists

VTSYIQI Nitrogen Dioxide Gas Detector Fixed NO2 Gas Monitor with Measuring Range from 0 to 20ppm L-alarm 5ppm H-alarm 10ppm Resolution 0.1ppm for Measurement of Gas Concentrations in a Wide Range of Industry Sectors

VTSYIQI Nitrogen Dioxide Detector Fixed NO2 Leak Detector with Wall-mounted Installation Method Measuring Range from 0 to 20ppm L-alarm 5ppm H-alarm 10ppm for Painting Plant and Metallurgical Industry Gas Test

VTSYIQI Nitrogen Dioxide Detector Fixed NO2 Gas Tester Measuring Range from 0 to 20ppm L-alarm 5ppm H-alarm 10ppm Wall-mounted Installation Method Resolution 0.1ppm Aluminum Shell Material Output Current 4-20mA