Fast & comprehensive gas detection
The GT5000 Terra delivers rapid, high-precision analysis with:
- 5000 detectable gases in the reference library
- 500 measurable gases with accurate quantification
- 50 gases simultaneously measured in one scan
- 5-second measurement time for real-time results
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Reliable multi-gas analysis in any environment
Built for fieldwork, the GT5000 Terra measures up to 50 gases simultaneously with exceptional accuracy, even in remote or unpredictable conditions. Whether assessing workplace exposure, conducting greenhouse gas research in challenging terrains, or responding to hazardous incidents, it provides real-time data to support critical decisions on-site.
With its robust construction and user-friendly operation, the GT5000 Terra ensures that no matter where you work or who is operating the analyzer, users have access to high-quality gas detection without the complexity of traditional lab-based analysis.
Portabler gas analyzer with intuitive operation
Weighing just 9.4 kg, the GT5000 Terra is compact and easy to carry, making deployment in the field effortless. It’s rugged, splashproof design (IP54-rated) ensures reliability in harsh conditions, from industrial sites to remote ecosystems, or as we like to say, from Amazon to the Arctic.
Powered by Calcmet software, the analyzer operates via an intuitive tablet interface, enabling quick setup and smooth operation. Users can start measurements with minimal effort, and with simultaneous multi-gas detection, results are available in just seconds—ensuring efficient and accurate data collection wherever it’s needed.
Detect unknown gases with FTIR technology
Unlike conventional gas detectors focusing on one to 6 gases, the GT5000 Terra can detect hundreds of compounds simultaneously, including unknown gases. It’s FTIR technology allows users to identify unexpected contaminants even in complex mixtures, making it an essential tool for industrial hygiene, emergency response, and research applications.
The analyzer’s extensive reference library of 5000 gases and powerful real-time analysis capabilities mean that even unforeseen chemical threats can be detected, analyzed, and acted upon quickly, without predefined target lists.
Key benefits of choosing GT5000 Terra
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- Exceptional sensitivity with high accuracy. Achieve precise measurements with low detection limits for a wide range of gases, ensuring reliable results in even the most demanding applications.
- Effortless user experience. Benefit from user-friendly Calcmet software with adaptive, dynamic features that simplify the measurement process, making complex gas analysis accessible to all users, regardless of technical background.
- Comprehensive gas measurement in a portable form. Measure up to 50 gases simultaneously with a single, portable analyzer that can be easily deployed in diverse field and laboratory environments, enhancing efficiency and reducing equipment needs.
- Powerful identification and data analysis tools. The integrated ID tool quickly identifies unknown gases from a list of 5000 gases, while streamlined data acquisition and analysis workflows allow users to make informed decisions in real-time with just one press of a button. Reanalysis allows verification of the results and discovering unexpected results.
- Minimal maintenance and long-term support. No recalibrations by user required, ensuring easy maintenance and low operational costs, backed by Gasmet’s dedicated support network and proven reliability with over 7,000 analyzers in use worldwide.

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Industries that benefit from multi-gas FTIR analysis
The GT5000 Terra is trusted for a wide range of use cases, including: