SERVOPRO 4900 Multigas

High-specification digital continuous emissions (CEMS) analyzer, designed for multi-gas measurement of criterion pollutants, greenhouse gases and reference oxygen. The advanced SERVOPRO 4900 Multigas delivers high-performance multi-gas monitoring designed specifically for the continuous emissions monitoring of flue gas.

This sensitive analyzer uses a combination of Servomex’s leading-edge, patented, digital sensing technologies, including Paramagnetic O2, and the non-dispersive infrared (NDIR) techniques of Single Beam Single Wavelength (SBSW) and Gas Filter Correlation (GFx).


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  • Integrated solutions for CEMS

    Gas analysis plays an essential role in cleaner industrial operations for plants and refineries, helping to ensure more efficient processes, support the safe removal of pollutants, and monitoring the harmful emissions to the atmosphere. A high-performance continuous emissions monitoring system (CEMS) ...

  • Experience the difference - Servomex system integration

    Our sole focus is on delivering total system solutions. Combining our extensive industry experience with high-quality analyzer products and unparalleled applications knowledge, we have expert solutions to meet every customer requirement. Our decades of gas analysis expertise are built into every system ...

  • Servomex - 70 years of gas expertise

    Welcome to the latest issue of Expert Solutions. In this issue, we celebrate 70 years since the beginning of Servomex. In 1952, three partners set up Servomex as a manufacturer of electronic products. It’s unlikely they could have foreseen our transformation over the next seven decades to our current ...

  • Carbon Capture and Storage

    Carbon Capture and Storage (CCS) technologies aim to capture carbon dioxide (CO2) emissions from power plants and heavy industry before transporting it by pipeline or ship and storing it underground in, for example, empty oil and gas fields. The driver behind this method is to reduce the mass of CO2 ...

  • Process Heaters

    The term ‘process heater’ is defined as any process plant unit that uses a controlled/monitored flame to heat process gas or liquid streams. Similar units operating at higher temperatures are also used, for example on ethylene production plants, to produce thermal breakdown (‘cracking’) of hydrocarbon ...

  • Servomex Buyers Guide

    Welcome to Servomex. The world’s leading manufacturer of gas analysers and gas analysis systems. Developed and manufactured in our UK and Americas Technical Centers, Servomex analyzers are hand-built to precise requirements. This ensures every product we make provides performance optimized to the needs ...

  • Servomex Service guide

    Service plays an essential role in Servomex’s gas analysis expertise. Our analyzer systems are designed to meet the precise process requirements of every customer, and the same is true of our service support. We supply an extensive range of service products, backed by deep applications knowledge, that ...

  • Servomex product guide

    Our industry-leading gas analyser range and systems, matched to your industry requirements. Developed and manufactured in our UK and Americas Technical Centers, Servomex analyzers are hand-built to precise requirements. This ensures every product we make provides performance optimized to the needs of ...

  • SERVOFLEX Micro i.s. 5100

    Intrinsically safe analyzer measuring O2, CO or CO2. High performance oxygen designed for the measurement of toxic and flammable gas samples, the intrinsically safe Micro i.s 5100 is a unique analyzer certified to Zone 0 and Zone 1, and suitable for measuring percent levels of O2, CO or CO2.   Applications ...


    Rugged and durable oxygen, carbon monoxide and carbon dioxide portable analyzer designed for field and light industrial use. The MiniHD 5200 is an ultra-sensitive analyzer designed for O2, CO and CO2 monitoring in common gas mixtures. With a rugged and durable design, the MiniHD is optimized for use ...

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