Safety, quality, productivity: that’s what’s most important to you. And that’s why our approach to designing analyzers and sensors is based around a simple challenge – how can the design, handling and maintenance of our products help you reach your goals? This led to us rethinking gas analytics and the development of a unique portfolio of gas instruments that offers you faster measurements, greater process availability and unequalled ease of use.

Gas Analyzer - Frequently Asked Questions (FAQ)
Tunable Diode Laser Gas Analyzers | |
Designed for in situ and extractive chemical processes, these TDL gas analyzers are easy to install and require almost no maintenance. | |
No alignment needed with one-flange probe concept Drift-free measurement requires no calibration Fast response time with in situ installation Options for extractive and cross-pipe installation |
Designed for in situ and extractive chemical processes, these TDL gas analyzers are easy to install and require almost no maintenance.
Publications
Technical and Application Information for Gas Measurement

Gas Analysis Brochure

Tunable Diode Laser Spectrometry – Theory and Background eBook
Tunable diode laser gas analyzers, introduced in the 1990s, have seen rapid growth in industry over the past decade. This is due to their exceptional performance and reliability. Today, TDL spectroscopy continues to make technical advances, making this class of sensor the preferred choice by many chemical and petrochemical companies. In this free booklet we discuss the theory of absorption spectroscopy and how TDL analyzers are being employed in an increasing number of process and safety-critical applications.

White Paper: HCL Monitoring in Stacks and Scrubbers
Measuring hydrogen chloride (HCl) gas in industrial applications can be very challenging, but is required by regulation in many countries due to its polluting effects. It often must be measured in industrial exhaust systems to ensure levels are within required regulatory limits. For that reason, nearly all stacks and scrubbers where HCl is present are equipped with monitoring devices. Probe-style TDL gas analyzers provide a reliable and cost-effective alternative to measuring HCl, compared to traditional methods.

Process Analytics Product Catalog
The Process Analytics catalog includes product features and specifications, benefits and recommended application areas for the wide range of parameters which METTLER TOLEDO measures including: pH/ORP, conductivity, turbidity, dissolved oxygen, dissolved carbon dioxide, gas analytics, total organic carbon, sodium, silica and microbial contamination. It also highlights the transmitters and housings that are needed to make an entire measurement system.
Services
Find out more about our services

Explore our Services - Tailored to Fit your Equipment
We support and service your measurement equipment through its entire life-cycle, from installation to preventive maintenance and calibration to equipment repair.
Videos
Videos demonstrating Gas Measurement and Applications and Practice
Rethinking Gas Analytics
Tunable diode laser (TDL) spectroscopy is rapidly becoming the gas analysis technology of choice in industrial processes. But sometimes users find that conditions at the measurement location can limit their use. METTLER TOLEDO has been rethinking gas analytics and has developed the GPro 500 series, a versatile platform that allows you to place a TDL wherever it matters in your process, whatever the location.