Your Professional Flue Gas Moisture Oxygen Monitoring Supplier
LTHZ provides continuous flue gas moisture and oxygen monitoring systems for industrial processes requiring accurate O₂ and moisture data. Designed for demanding conditions including high temperature, high humidity, dust, condensation, and corrosive components, our product portfolio covers oxygen analyzers, wet oxygen analyzers, dew point and moisture analyzers, and integrated flue gas monitoring instruments for power generation, steel, cement, chemical processing, waste-to-energy, and other industrial applications.
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In-situ Direct-insertion Laser Oxygen AnalyzerProduct Overview Adopting TDLAS (Tunable Diode Laser Absorption Spectroscopy) technology, the LT-9000 in-situ direct-insertion laser oxygen analyzer can be directly installed on pipelines, reactorsread more
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Online Dew Point MeterThe LT-GD200-LD is a rugged, continuous online dew point analyzer designed for real-time moisture measurement in industrial gases—from compressed air and natural gas to specialty and insulating gases.read more
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Wet Oxygen Analyzer• The high-temperature and high-humidity analyzer adopts internationally advanced solid electrolyte ceramic sensing technology.• It realizes the measurement of flue gas humidity, together withread more
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Temperature Pressure Velocity Integrated Monitor• The Integrated TPV Monitor is a key sensor unit dedicated to CEMS continuous emission monitoring systems.• It integrates temperature, pressure and flue gas velocity measurement within one sturdyread more
Flue Gas Moisture & Oxygen Monitoring Product Portfolio
Different flue gas processes require different measurement methods and installation configurations. LTHZ provides multiple analyzer types for continuous oxygen and moisture monitoring.
Online Oxygen Analyzers
Designed for continuous measurement of oxygen concentration in industrial flue gas and process gas streams.Typical applications include:
- Boiler combustion monitoring
- Furnace and kiln oxygen monitoring
- Flue gas oxygen measurement
- Combustion optimization
- Process safety monitoring
Related Products: Online Oxygen Analyzer, Zirconia Oxygen Analyzer
Wet Oxygen Analyzers
Wet oxygen analyzers are designed for applications where oxygen concentration needs to be measured under humid or high-temperature flue gas conditions.The system can support measurement of oxygen on different measurement bases according to the application requirements, helping operators understand the actual oxygen concentration in wet flue gas.
Typical applications:
- High-humidity flue gas
- Boiler exhaust
- Industrial furnaces
- Waste incineration
- Process combustion monitoring
Related Product: Wet Oxygen Analyzer
Flue Gas Moisture & Dew Point Analyzers
Moisture measurement provides information about water vapor and condensation conditions in industrial gas streams.Online dew point and moisture analyzers can be used to monitor:
- Flue gas moisture
- Dew point
- Water vapor
- Condensation risk
- Drying and gas conditioning conditions
Related Product: Online Dew Point Meter
Integrated Flue Gas Monitoring Instruments
For applications requiring more than oxygen or moisture measurement, integrated instruments can combine multiple flue gas parameters such as:
- Temperature
- Pressure
- Gas velocity
- Oxygen
- Moisture
These measurements can provide supporting data for emission monitoring, process control and gas conditioning.
Related Product: Temperature Pressure Velocity Integrated Monitor

What Can Flue Gas Moisture & Oxygen Monitoring Measure?
- Oxygen (O₂): Continuous measurement for combustion control, air-to-fuel ratio optimization, emission monitoring, and process stability.
- Flue Gas Moisture: Identifies flue gas condition changes, supports downstream analysis, especially where condensation, temperature control, or humidity fluctuations are concerns.
- Dew Point: Indicates condensation temperature to assess condensation/corrosion risk, sample line heating needs, gas conditioning performance, and drying processes.
Why Moisture & Oxygen Measurement Matters in Flue Gas
- Combustion Optimization: O₂ data provides feedback for combustion air control and efficiency improvement.
- Flue Gas Conditioning: Moisture and dew point data ensure gas conditioning and sample handling systems operate properly.
- Corrosion Prevention: Monitoring identifies condensation conditions that may cause downstream equipment corrosion.
- Reliable Gas Analysis: Proper moisture monitoring and conditioning improve downstream measurement reliability.
- Emission Monitoring: O₂ and moisture data serve as supporting parameters for CEMS and environmental applications.

Flue Gas Oxygen & Moisture Measurement Technologies
LTHZ offers measurement technologies matched to gas temperature, humidity, dust concentration, installation location, and required measurement range.
Zirconia Oxygen Measurement
Continuous O₂ measurement for flue gas and combustion processes. In-situ installation directly in the flue duct eliminates external sampling.
Wet-Basis Oxygen Measurement
Direct O₂ measurement in high-humidity flue gas without dry sample treatment, ideal when moisture content is a critical parameter.
In-Situ Measurement
Sensor installed directly in the flue or process duct. Direct measurement, reduced sample transport, fast response, minimal external conditioning. Ideal for difficult sampling or fast-response requirements.
High-Temperature Oxygen Measurement
Analyzer configurations for demanding conditions in industrial furnaces, boilers, kilns, high-temperature flue ducts, and combustion systems.
Dew Point & Moisture Measurement
Continuous water vapor monitoring. Configurations selectable by moisture concentration, dew point range, gas temperature, pressure, gas composition, and installation environment.
Extractive Measurement
Representative gas sample extracted and conditioned (probe, heated line, filtration, cooling, dehumidification, pressure control) before analysis. Suitable when gas conditioning is required or the analyzer must be installed away from the flue.

Technical Capabilities & Industrial Applications
- Power Generation: Boiler combustion optimization, CEMS support, and flue gas conditioning.
- Steel & Metallurgy: Stable O₂ measurement for furnaces, sintering, and high-temperature flue gas.
- Cement & Lime: O₂ and moisture monitoring at kiln exhaust, preheaters, and combustion zones.
- Waste-to-Energy: Combustion control and emission monitoring for complex, corrosive flue gas.
- Chemical & Petrochemical: Moisture/O₂ monitoring for combustion, gas conditioning, and process safety.
- Glass & Ceramics: Stable combustion and O₂ control for high-temperature furnace processes.
How to Select a Flue Gas Moisture & Oxygen Analyzer?
- Gas Parameters: O₂ range, moisture concentration, dew point, interfering gases.
- Process Conditions: Gas temperature, pressure, dust concentration, humidity, corrosive components.
- Installation Conditions: In-situ or extractive, probe insertion length, sampling distance, available space, ambient temperature.
- System Requirements: Measurement accuracy, response time, output signals, PLC/DCS integration, automatic calibration, maintenance needs.
Why Choose LTHZ for Flue Gas Moisture & Oxygen Monitoring?
Application-Based Selection
Analyzer and configuration matched to actual flue gas conditions, not just target gas.
Multiple Technologies
Full portfolio covering oxygen, wet oxygen, moisture, and dew point measurement.
Flexible Installation
Both in-situ and extractive configurations available per site requirements.
Built for Harsh Conditions
Configurable for high temperature, humidity, dust, and corrosive flue gas.
Custom Configuration
Measurement range, probe, sampling system, gas conditioning, and communication interfaces adapted to project needs.
Full Technical Support
Assistance from application assessment and analyzer selection to system configuration and ongoing support.
FAQ
Q: Why is oxygen measurement important in flue gas?
A: O₂ concentration provides critical data for combustion optimization, process control, and emission monitoring.
Q: Why should moisture be monitored in flue gas?
A: Moisture affects gas conditioning, condensation risk, and the accuracy of downstream gas analysis.
Q: What is the difference between wet-basis and dry-basis oxygen?
A: Wet-basis O₂ is measured with water vapor present; dry-basis O₂ is measured or calculated after moisture removal. The choice depends on the application and measurement system.
Q: What is a flue gas dew point?
A: The temperature at which water vapor begins to condense. Monitoring dew point helps identify condensation and corrosion risks.
Q: Should I choose an in-situ or extractive analyzer?
A: The choice depends on gas temperature, dust, moisture, composition, installation conditions, and required performance. In-situ measures directly in the duct; extractive transports a conditioned sample to the analyzer.
Q: Can the system be used for high-temperature flue gas?
A: Yes. Specific analyzer and sampling configurations are available for high-temperature applications, selected based on actual gas temperature and process conditions.
Q: Can moisture and oxygen be measured in the same system?
A: Yes. Depending on the configuration and application requirements, O₂ and moisture can be monitored as part of an integrated flue gas measurement system.
Need a Flue Gas Moisture & Oxygen Monitoring Solution?
LTHZ provides flue gas moisture and oxygen monitoring systems for industrial applications involving high temperature, humidity, dust and demanding gas conditions.
Send us your gas composition, O₂ range, moisture or dew point range, gas temperature, pressure, dust level and installation conditions. Our engineers can help select the appropriate analyzer technology, sampling configuration and monitoring system for your application.
Request a Customized Flue Gas Monitoring Solution →
As one of the leading flue gas moisture oxygen monitoring manufacturers and suppliers in China, we also support customized service. Please feel free to buy high quality flue gas moisture oxygen monitoring made in China here from our factory. Welcome to view our website for more information.
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