Marine Gas Suplies provides Gastec gas detection tubes designed to support fast, accurate, and practical gas analysis across marine, offshore, and industrial environments.
With a focus on precision, portability, and ease of use, our gas detection tube range helps vessel operators and site teams identify specific gases quickly, supporting safer working conditions and confident on-site decision-making.
Gas Detection Tubes
Fast, Reliable Gas Detection for Marine, Offshore, and Industrial Environments
Marine Gas Supplies provides high-quality gas detection tubes designed to support fast, accurate and practical gas analysis across marine, offshore, industrial and safety-critical environments.
Compact, portable, and easy to use, gas detection tubes offer a straightforward method for identifying and measuring specific gases without the need for complex equipment, a power supply, or lengthy laboratory testing. They are particularly useful for onboard checks, confined space assessments, environmental monitoring, and routine safety procedures where quick, clear results are essential.
Gastec Tubes
Gastec tubes are a reliable and efficient solution for detecting and measuring gases across a wide range of applications.
Each tube is designed to react with a specific target gas. When air is drawn through the tube using a compatible sampling pump, the reagent inside the tube changes colour. This colour change provides a clear visual indication of gas concentration, allowing users to assess potential risks quickly and confidently.
This simple colour-change method makes Gastec tubes a practical option for marine teams, offshore operators, industrial sites, and safety professionals who need accurate on-the-spot gas analysis.
How Gastec Tubes Work
Gastec tubes are designed for simple, controlled sampling.
To carry out a test, the selected tube is inserted into a compatible hand pump. Air is then drawn through the tube, allowing the target gas to react with the reagent inside. As the reaction takes place, the reagent changes colour, with the length or intensity of the colour change indicating the concentration level of the gas being measured.
This provides users with a fast and easy-to-read result without requiring electronic equipment, batteries, or complex calibration procedures.
Emergency and Safety Response
Offering fast, portable gas analysis where immediate results are needed to support safe decision-making.
Environmental Monitoring
Supporting air quality checks and the detection of specific gases in workplace or site-based environments.
Confined Spaces
Providing a practical testing method for tanks, holds, engine rooms, plant rooms, and enclosed working areas.
Industrial Environments
Helping teams identify and measure gases, vapours, and contaminants across manufacturing, maintenance, and processing areas.
Marine and Offshore Operations
Supporting vessel safety checks, confined space assessments, and onboard gas monitoring procedures.
Suitable for a Wide Range of Applications
Gas detection tubes are used across a variety of environments where fast and reliable gas measurement is required.
They are particularly suited to:
Features of Gastec Gas Detection Tubes
High Accuracy
Designed to provide precise gas concentration readings for specific target gases.
Simple to Use
Operates with a compatible hand pump, with no power source or complex setup required.
Wide Gas Detection Range
Suitable for detecting a broad range of gases, vapours, and contaminants across multiple applications.
Colour-Change Detection
Provides clear visual results through a chemical colour reaction inside the tube.
Pre-Calibrated Tubes
Each tube is supplied ready for use, helping reduce the need for on-site adjustment or complex preparation.
Fast Sampling Time
Delivers results quickly, often within seconds to minutes, depending on the gas and application.
Portable and Lightweight
Ideal for fieldwork, vessel use, confined spaces, and remote working environments.
Benefits of Gastec Gas Detection Tubes
Fast On-Site Results
Gas detection tubes provide immediate readings without waiting for laboratory analysis.
Practical and Cost-Effective
A reliable option for routine monitoring, spot checks, and specific gas testing requirements.
No Power Required
Suitable for use in remote, emergency, or confined environments where electricity or battery-powered equipment may not be practical.
Low Maintenance
With no complex electronic components, gas detection tubes offer a simple testing method with minimal upkeep.
Supports Safer Working Conditions
Helps teams identify potential gas risks quickly, supporting safer decision-making in marine, offshore, and industrial settings.
Suitable for Confined and High-Risk Areas
A practical option for testing enclosed spaces where hazardous gases or vapours may be present.
Supports Compliance and Monitoring Procedures
Can assist with workplace safety checks, occupational health procedures and wider environmental monitoring requirements.
Speak to Marine Gas Supplies
Not sure which gas detection tubes you need?
Speak to Marine Gas Supplies for guidance on suitable Gastec tubes, compatible sampling equipment, and gas detection requirements.
Our team can help you identify the right option based on your application, environment, and target gases.