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GM32 emission monitoring solution
New

Measure aggressive gases directly and quickly – even in ATEX zones

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GM32 emission monitoring solution
New

Measure aggressive gases directly and quickly – even in ATEX zones

Benefits

  • Nearly uncompromised measured values measured directly in the gas duct
  • Short-term process deviations can be measured
  • Representative measurement by selection of cross-duct or measuring probe type
  • Fast on-site service possible due to modular design
  • Long maintenance-free intervals
  • Cost-effective in-situ gas analyzer — Ex-type also available
  • Low cost of installation and operation, no test gases required

Services and resources

Product Support Product documentation, troubleshooting articles, device details and more.
FLEXible answers to individual needs
Current product

GM32 emission monitoring solution

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  • High-end products
  • Highly functional and convenient

What is FLEX?

FLEX selections
Technical excellence
Simplicity
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Fundamental selection Meet your basic measurement needs
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Lean selection Handle your core processes easily
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Extended selection Optimize your processes with innovative technologies
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Xpert selection Master your most challenging applications
Variable
Manufacturer's warranty

Engineered for confidence

Our instruments are designed for long‑lasting performance, precise measurement, and dependable operation in demanding industrial environments. Each product includes a standard manufacturer’s warranty that reflects our commitment to quality and to the trust you place in our solutions.

Should a warranty case occur, the device will be assessed and the applicable remedy will be provided in line with the warranty terms – helping ensure a reliable and efficient resolution and supporting continued operation of your measurement point.

Request for extended warranty

If you require extended warranty coverage, simply contact your local Endress+Hauser representative. Our experts will advise you on the available options to match your application and risk profile, helping you protect your investment, reduce unexpected repair costs, and ensure reliable long‑term operation beyond the manufacturer's warranty period.

Learn more

Warranty terms apply

The manufacturer's warranty and extended warranty are subject to specific conditions. For full details, please refer to the locally applicable General Terms and Conditions (GTC), which can be found on the respective country page of our website.

Services by your side

Right‑first‑time commissioning, worldwide

Endress+Hauser’s qualified service engineers ensure your measurement devices are commissioned right the first time, delivering application‑aligned accuracy, regulatory compliance, and operational confidence from startup onwards, anywhere in the world.

Remote support you can trust wherever you operate

With Endress+Hauser Smart Support, you benefit from faster issue resolution, higher uptime, reliable global expertise across the entire product lifecycle – and lasting peace of mind.

Committed to long‑term, sustainable performance

With deep field expertise, harmonized processes, and continuous monitoring, we accompany you with comprehensive service offerings – from initial start‑up through instrumentation maintenance to process optimization – as a true lifetime partner delivering improved outcomes.

For additional information, please contact your local Endress+Hauser representative.

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24/7 customer portal

Personalized transaction space

Check prices and delivery times, save your favorite products, create quotes and place orders in just a few clicks and track deliveries at any time. With access to your complete order and quote history including all relevant documents you benefit from full transparency throughout the entire process.

Easy access to technical documentation

Select and download all technical documentation such as operating manuals, calibration certificates, approvals and CAD drawings conveniently bundled as a complete documentation package for your entire order or quote.

My Endress+Hauser – all in one place

My Endress+Hauser is your 24/7 connection to Endress+Hauser – in the office, in the field or on the go. It brings together transaction management, documentation and software downloads, knowledge base access, customer support, engineering tools and cloud‑based IIoT services helping you work easier, faster and more efficiently.

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Service options

Product information

Specifications
Measuring / Application task NO, NO2, NH3, SO2
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Description

The GM32 in-situ gas analyzer measures SO2, NO, NO2 and NH3, pressure and temperature in the gas duct. Direct, fast and without gas sampling and transport. Due to self-monitoring, the measured values are reliable. In case of a malfunction, an early warning will be shown. For emission measurement of SO2 and NO, the GM32 is tested for suitability according to European standard EN 15267. An Ex-type with extensive safety functions and sophisticated system technology is also available.

Field of application
  • For monitoring and control in flue gas purification, such as denitrification plants, desulfurization plants and converters
  • Emissions monitoring according to EU directives or local regulations


Device properties:

  • No gas sampling, no gas transport, no gas conditioning
  • Up to four measurands at the same time, plus process temperature and pressures
  • Numerous independent measuring ranges with consistent accuracy
  • Automated self-test function (QAL3) without test gases
  • Overpressure encapsulated type Ex-zone 2
Benefits
  • Nearly uncompromised measured values measured directly in the gas duct
  • Short-term process deviations can be measured
  • Representative measurement by selection of cross-duct or measuring probe type
  • Fast on-site service possible due to modular design
  • Long maintenance-free intervals
  • Cost-effective in-situ gas analyzer — Ex-type also available
  • Low cost of installation and operation, no test gases required
Downloads
Most downloaded
Operating Instruction (BA)
GM32 Measuring Probe In-situ Gas Analyzer, Measuring Probe Version
English version - 01/2025
Download
Operating Instruction (BA)
GM32 Cross-Duct In-situ Gas Analyzer, Cross-Duct Version
English version - 01/2025
Download
Technical Information (TI)
GM32, measuring probe (TI) In-situ Gas Analyzer, Measuring Probe Version
English version - 01/2025
Download
All downloads
25 Downloads
Technical Information (TI)
GM32, measuring probe (TI) In-situ Gas Analyzer, Measuring Probe Version
English version - 01/2025
Download
Operating Instruction (BA)
GM32 Ex Cross-Duct In-situ Gas Analyzer, Cross Duct Version
English version - 01/2025
Download
Operating Instruction (BA)
Most downloaded
GM32 Cross-Duct In-situ Gas Analyzer, Cross-Duct Version
English version - 01/2025
Download
Operating Instruction (BA)
Most downloaded
GM32 Measuring Probe In-situ Gas Analyzer, Measuring Probe Version
English version - 01/2025
Download
Operating Instruction (BA)
GMK03 - Gas Test Unit The GMK03 gas test unit is used to test the linearity of the
measurement results of gas analyzers as required for a
metrological quality test (e.g. for QAL2, QAL3). For this purpose,
the GMK03 gas test unit can simulate several graded test gas
concentrations with a single (suitable) test gas.
English version - 05/2025
Download
Operating Instruction (BA)
GM32 Ex Measuring Probe In-situ Gas Analyzer, Measuring Probe Version
English version - 01/2025
Download
Short Instruction (KA)
Instrument Air Adapter for in-situ gas analyzers Description of installation, commissioning and
maintenance
English version - 01/2025
Download
Short Instruction (KA)
Air Heater The air heater is used in in-situ and dust measurement devices.
It serves to warm up the purge air in applications with gas temperatures
close to water dew point or ambient temperatures down to –25 °C.
English version - 01/2025
Download
Ex Safety Instruction (XA)
Safety Information for non-Ex analyzer devices
(multi-lingual, also in DE, BG, CS, DA, EL, ES, ET, FI, FR, HR, HU, IT,
LT, LV, NL, NO, PL, PT, RO, RU, SK, SL, SV)
English version - 01/2025
Download
Ex Safety Instruction (XA)
GM32 Ex safety information Safety Information for Ex Devices
(multi-lingual, also in DE, BG, CS, DA, EL, ES, ET, FI, FR, HR, HU, IT,
LT, LV, NL, NO, PL, PT, RO, RU, SK, SL, SV)
English version - 01/2025
Download
Special Documentation (SD)
GM32 Ex tightening torques Tightening torques for GM32 Ex, Cross-Duct Version and Probe Version
English version - 01/2025
Download
Special Documentation (SD)
GM32 – DIN EN 61010-1: 2020-03 Additional Information for GM32 Gas Analyzer
English version - 05/2026
Download
Special Documentation (SD)
GM32, LVD declaration Manufacturer's declaration concerning the Declaration of Conformity
for GM32 with regard to the Low Voltage Directive 2014/35/EU
(bi-lingual, also in German)
English version - 01/2025
Download
Special Documentation (SD)
GM32 TCP-Modbus Converter TCP-Modbus Converter
English version - 01/2025
Download
Industry Solution (SO)
Solutions for gas-fired power plants With our broad range of solutions Endress+Hauser has proven applicability in the entire power generation process, from gas flow to
combustion efficiency to emissions monitoring.
English version - 01/2025
Download
Industry Solution (SO)
Broad range of solutions for waste-to-energy plants Ideal automation and safety solutions for collection, sorting
and recycling of waste
English version - 01/2025
Download
Industry Solution (SO)
Solutions for chemicals, petrochemicals and refineries Endress+Hauser offers a broad product portfolio of continuous gas analyzers using state-of-the-art technologies.
English version - 01/2025
Download
Competence Brochure (CP)
Emission Monitoring Solutions Broad portfolio and long-standing experience
English version - 05/2026
Download
Competence Brochure (CP)
Soluzioni per il monitoraggio delle emissioni Soluzioni per il monitoraggio delle
emissioni
Ampio portfolio e vasta esperienza
Italian version - 05/2025
Download
Competence Brochure (CP)
Lösungen zur Emissionsüberwachung Breites Portfolio und langjährige
Erfahrung in Gasanalyse und
Durchflussmessung
German version - 03/2026
Download
Competence Brochure (CP)
排出ガス監視ソリューション 幅広い製品群と長年にわたる実績 排出ガス監視、測定原理と技術、国際的な要件とサービス、選択ガイド、そして測定装置の一覧をまとめたパンフレット
Japanese version - 09/2025
Download
Innovation (IN)
GM32 – In-situ gas analyzer for efficient measurement of SO2, NO, NO2, NH3 – even in ATEX zone Cleaner environment thanks to proven measurement technology
English version - 03/2026
Download
Miscellaneous
Product family: GM, GM32, GM35, GM700, GM901 Product root: IGM32-, IGM35-, IGM700-, IGM901-
Region: Eurasian Economic Union
Approval agency: EAC
Approval number: ЕАЭС KZ.7500525.13.12.00728
07/2025
Download
Pressure Equipment
Product family: GM, GM32 Product root: IGM32-
Region: USA
Approval agency: INTERTEK (ETL)
English version - 01/2025
Download

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Spare parts and accessories

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SP-SET LAMP,W.SCREEN

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SP-SET LIGHT SOURCE BULB DEUTERIUM COMBI

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Order code 2086187
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SP-SET F. FRONT LENS ASS. SMALL MAINT.

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Order code 2083223
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DESICCANT,CARTRIDGE

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Order code 2010549
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