Gas Sensors and analyzers

Gas sensors and analyzers play a critical role in ensuring safety, environmental compliance, and industrial processes by detecting and quantifying the presence of various gases in the air. These devices are designed to monitor and analyze the concentration of specific gases, providing real-time data that enables timely response and intervention.

Gas sensors are equipped with advanced technologies that allow them to detect a wide range of gases, including toxic, flammable, and combustible substances. These sensors utilize different principles such as electrochemical, infrared, catalytic, and semiconductor to achieve accurate and reliable measurements. They find applications in diverse industries, from manufacturing and petrochemicals to environmental monitoring and healthcare.

Gas analyzers, on the other hand, go beyond simple detection by providing in-depth analysis of gas compositions. They can identify and quantify multiple gases simultaneously, making them essential for quality control in industrial processes and emissions monitoring. Gas analyzers are particularly valuable in maintaining air quality standards and ensuring workplace safety.

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A gas analyzer is a precision instrument used to detect and measure gas concentrations in various environments and industries such as oil & gas, power plants, medical labs, waste management, and environmental monitoring. Whether you’re analyzing flue gases in boilers, checking methane levels in landfills, or conducting biochemistry diagnostics, gas analyzers play a crucial role in ensuring safety, compliance, and process efficiency. These analyzers function by drawing gas samples, detecting specific gas types through NDIR, electrochemical, paramagnetic, or photoionization sensors, and converting them into readable data via display or control systems. There are several types—including multi-gas analyzers, portable gas analysers, methane-specific units, and biochemistry analyzers—each designed for unique use-cases like emission tracking, field inspections, or lab testing. Prices vary depending on accuracy, sensors, and capabilities like remote control, ATEX safety ratings, and integration with SCADA or PLC systems. At Aaxis Nano, we provide end-to-end gas analysis solutions customized for industries with rugged designs, certified technology, and competitive pricing—whether you need a portable unit, lab-grade analyzer, or fully integrated process system.


What is a Gas Analyzer?

Gas Analyzer Definition & Purpose

A gas analyzer is an instrument that detects and measures the concentration of gases in a sample. It is widely used in industries like:

    • Oil & Gas

    • Power Plants

    • Environmental Monitoring

    • Medical & Biochemistry

    • Waste Management


What is a Gas Analyzer Used For?

Gas analyzers serve several purposes depending on the application:

    • Detect hazardous gases like methane, CO, or NOx

    • Control emissions in industries (exhaust and flue gases)

    • Ensure compliance with safety and environmental standards

    • Analyze chemical processes for efficiency and safety

    • Medical diagnosis through biochemistry gas analyzers


What is the Process of Gas Analysis?

Working Principle Explained

Gas analysis is the method of collecting, conditioning, and examining gases using sensors. The basic emission analyzer working principle includes:

    1. Sampling System: Draws a gas sample from the process or environment

    1. Sensor Unit: Detects and measures gas types and concentrations

    1. Signal Processor: Converts signals into readable data

    1. Display/Output Interface: Shows readings or sends them to control systems

Sensors used include:

    • NDIR (Non-Dispersive Infrared)

    • Electrochemical Cells

    • Paramagnetic Detectors

    • Photoionization Detectors


What is a Process Analyzer?

A process analyzer is a specialized gas analyzer integrated into industrial systems to continuously monitor and optimize chemical processes.

It helps in:

    • Real-time gas concentration tracking

    • Process safety and control

    • Reducing production costs through optimization

    • Meeting emission compliance regulations


Types of Gas Analyzers

1. Multi-Gas Analyzer

    • Measures multiple gases simultaneously

    • Used in industrial emissions, stack monitoring, or HVAC testing

    • Features auto-calibration and advanced data logging

2. Portable Gas Analyser

    • Compact and battery-powered

    • Ideal for on-site monitoring, emergency response, or spot-checks

    • Rugged design for harsh environments

3. Biochemistry Analyzer

    • Used in medical diagnostics and labs

    • Analyzes gases like CO₂ and O₂ in biological samples

    • High precision and sensitivity

4. Portable Flue Gas Analyzer

    • Measures exhaust gases in combustion systems

    • Used in boilers, engines, and furnaces

    • Typically monitors CO₂, O₂, NOx, SO₂, and hydrocarbons

5. Methane Gas Analyzer Portable

    • Detects and quantifies methane (CH₄) in confined or open spaces

    • Used in mining, landfills, and biogas plants

    • Prevents explosions and ensures safety

6. Portable Exhaust Gas Analyser

    • Specifically designed for automobile and engine emissions testing

    • Measures CO, HC, NOx in vehicle exhaust

    • Lightweight and compatible with laptops or mobile apps


Gas Analyzer Price – What Affects It?

Type of Analyzer Estimated Price Range (INR)
Portable Flue Gas Analyzer ₹40,000 – ₹1,50,000+
Methane Gas Analyzer Portable ₹60,000 – ₹2,00,000+
Multi-Gas Analyzer ₹80,000 – ₹3,00,000+
Biochemistry Analyzer ₹2,00,000 – ₹10,00,000+
Portable Exhaust Gas Analyser ₹50,000 – ₹1,20,000+
Process Gas Analyzer ₹3,00,000 – ₹15,00,000+

Note: Prices vary depending on accuracy, sensor type, features, certifications, and industry use-case.


Process Gas Analyzer Price Factors

Several variables impact process gas analyzer pricing:

    • Number of gases measured

    • Real-time data output and remote control capabilities

    • Sensor technology (NDIR, Electrochemical, etc.)

    • ATEX or IS certifications for hazardous environments

    • Integration with SCADA or PLC systems


Emission Analyzer Working Principle

Emission analyzers often use NDIR and electrochemical sensors to detect gases in exhaust or industrial emissions. Here’s how:

    • NDIR: Absorbs specific wavelengths of IR light for each gas

    • Electrochemical Sensors: Oxidize or reduce gases to produce measurable current

    • Sample Conditioning: Filters out moisture and particles

    • Flow Control: Ensures accurate, consistent sample volume

The result is high-accuracy readings vital for compliance reporting and environmental safety.


Applications of Gas Analyzers

Industry Application
Power Plants Flue gas & emission monitoring
Oil & Gas Methane and VOC detection
Automotive Exhaust gas analysis
Laboratories Biochemistry and clinical diagnostics
Food Processing Modified atmosphere packaging (MAP) monitoring
Waste Management Landfill gas and biogas monitoring


Why Choose Aaxis Nano?

At Aaxis Nano, we offer end-to-end gas analysis solutions designed for:

    • Portability without compromising precision

    • Multi-gas detection capabilities

    • Compliance with national and global standards (CPCB, EPA, ISO)

    • Competitive gas analyzer price points

    • Rugged and industrial-grade designs

Whether you need a portable flue gas analyzer, methane gas analyzer portable, or a biochemistry analyzer, we customize our solutions based on your sector and specific gas monitoring needs.


We Provide These Solutions

With a robust portfolio of gas analyzer products and services, Aaxis Nano offers:

    • Portable gas analyser for field and industrial use

    • Multi-gas analyzer systems with real-time data integration

    • Biochemistry analyzer for lab-grade gas detection

    • Methane and flue gas analyzers for energy and safety sectors

    • Emission analyzers built on NDIR and electrochemical sensor technology

    • Custom-engineered process analyzers with industry-specific applications

    • Advisory on selecting best gas analyzer by application and budget


Ready to Elevate Your Gas Monitoring?

Contact Aaxis Nano today for smart, portable, and process-grade gas analyzers at the most competitive prices in India. We don’t just sell instruments—we deliver precision, safety, and peace of mind.

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