Cavity Ring-Down Spectroscopy (CRDS)
Gas Analyzers
For Trace and High Purity Gas Analysis
Cavity Ring-Down Spectroscopy (CRDS) Gas Analyzers
Ultra-High Purity (UHP) Gas Analyzers with Cavity Ring-Down Spectroscopy (CRDS) Technology
Ensure unmatched precision and sensitivity in gas quality analysis with our TIGER OPTICS™ Ultra-High Purity (UHP) gas analyzers, powered by advanced Cavity Ring-Down Spectroscopy (CRDS). Trusted globally across industrial gas, medical gas, and chemical processing industries, our analyzers are engineered to detect trace-level moisture and other impurities in a wide range of process gas streams—including inert, reactive, corrosive, bulk, and specialty gases.
Why Choose our TIGER OPTICS Ultra-High Purity (UHP) Gas Analyzers?
Our UHP gas analyzers utilize CRDS technology, a highly sensitive, non-destructive method that delivers quantitative measurements of molecular absorption. This enables ultra-precise trace gas analysis in applications demanding the highest purity standards.
How CRDS Works in Ultra-High Purity Analysis
Cavity Ring-Down Spectroscopy operates by measuring the absorption rate of laser light within a highly reflective optical cavity. A laser pulse is injected into the cavity, where it reflects thousands of times between two ultra-reflective mirrors. As the light interacts with the gas sample, even minute concentrations of impurities—such as moisture, oxygen, or hydrocarbons—absorb part of the light, causing its intensity to decay.
The “ring-down time”, or how long it takes for the light to diminish to a threshold level, is precisely measured. This decay time correlates directly to the concentration of the target gas species, offering real-time, highly accurate results.
Applications
- UHP gas analysis for semiconductor manufacturing
- Moisture detection in medical and industrial gases
- Impurity monitoring in chemical and specialty gas production
- Continuous gas purity assurance in high-integrity process environments
Key Benefits
- Sub-ppb detection limits for trace impurities
- No calibration required – low maintenance
- Fast response time and high reproducibility
- Ideal for regulatory compliance and process optimization



SALES | TRAINING INQUIRIES
AMERICAS: info.americas@process-insights.com
EMEAI (includes India): info.emeai@process-insights.com
APAC: info.apac@process-insights.com
CHINA: info.cn@process-insights.com
FUEL CELL HYDROGEN ANALYSIS BULLETIN
Find out how the combined portfolio of Process Insights’ powerful analytic instruments for analysis of fuel-cell-grade hydrogen offers:
- Combination of three powerful analytical technologies: Cavity Ring-Down Spectroscopy (CRDS), Mass Spectrometry (MS) and Gas Chromatography (GC)
- Analysis of all critical contaminants listed in hydrogen purity standards ISO 14687 and SAE J2719
- Ideal detection limits from part-per-million (ppm) down to sub-part-per-billion (ppb) in line with requirements outlined in ISO 21087
CQC Monitoring Solutions
- Offers multiple technology choices to meet all customer needs
- Expert team who understands and supports all Ultra-High Purity (UHP) and Semi applications IQC/OQC/CQC
- Delivers both pre- and post-purifier trace impurity measurements
- 1-year warranty on all analyzers and cabinets
- 2-years of on-site service and spare parts
Ultra-High Purity Product Guide
We’re excited to announce the release of our Ultra-High (UHP) Purity Product Guide, Issue 3! This comprehensive guide offers a concise overview of our high-performance gas analyzers, specifically designed for high-purity applications.
Simultaneously Monitor HF, HCl, and NH3 in Real-Time
T-I MAX X3 AMC MONITORING SOLUTION
Next-Generation Trace Gas Analyzers for Detection & Continuous Monitoring of Airborne Molecular Contaminants in Semiconductor Cleanrooms, FOUP Cleaning Tools, Reticle Nests and Sub Fab Environments. You can spend a long time “looking” for Airborne Molecular Contaminants (AMCs) when the catastrophic product performance or yield loss is discovered at your device final test stage; or you can deploy our T-I Max™ series analyzers to locate and to monitor these invisible defect generators, commonly found lurking in and around equipment, personnel, wafer carriers and cleanroom bays.

SPARK INSTALLATION IS FAST!
Watch and see how quickly the installation process is with our Spark.
Curious about the HALO Max QCL?
Watch this video and see how fast our CRDS technology really is.