Confined Space Inspection with Real-Time Gas Detection

Confined space inspection is often limited by more than access and visibility. The primary risk is frequently the presence of hazardous or flammable gases that cannot be identified without dedicated monitoring. Elios 3 gas detection enables operators to assess atmospheric conditions in real time while conducting internal inspections, improving both safety and decision-making.
Traditional inspection workflows separate visual inspection from gas monitoring, which can delay critical insights and increase exposure. Integrating both into a single deployment changes how confined space inspections are approached.
Why Gas Detection Matters in Confined Spaces
In environments such as tanks, tunnels, and process vessels, atmospheric conditions can change rapidly. Without continuous monitoring, inspectors rely on pre-entry testing or delayed readings, which do not reflect real-time conditions.
This creates several challenges:
- Unknown gas presence during inspection
- Delayed response to hazardous conditions
- Increased reliance on confined space entry procedures
By embedding gas detection into the inspection platform, operators gain continuous visibility of environmental conditions throughout the mission.
How Elios 3 Enables Safer Inspections
The Elios 3 can be equipped with a specialised gas detection payload capable of identifying a wide range of combustible gases during flight. This allows operators to monitor conditions without entering the asset.
This approach aligns with broader confined space inspection strategies such as those outlined in improving high-risk asset inspections with digital twins, where data quality and safety are prioritised together.
Real-Time Hazard Detection
Operators receive live feedback on gas concentrations during the inspection, enabling immediate awareness of changing conditions.
- Detection of over 14 combustible gases
- Continuous monitoring throughout the inspection
- Immediate alerts when thresholds are exceeded
Reduced Exposure to Risk
Removing the need for human entry into hazardous environments significantly reduces safety risks.
- No confined space entry required for initial assessment
- Reduced need for breathing apparatus and standby crews
- Lower exposure to unknown or changing atmospheres
Improved Inspection Continuity
Combining visual inspection and gas detection into a single deployment allows inspections to continue without interruption.
- No need to pause for separate gas testing
- Faster completion of inspection scopes
- Better alignment with shutdown schedules
Applications Across Confined and Inaccessible Assets
Gas detection-enabled aerial inspection is suited to a wide range of industrial environments where access is restricted or hazardous.
Typical applications include:
- Storage tanks and pressure vessels
- Underground tunnels and shafts
- Process equipment and confined plant areas
These environments often require solutions from our broader drone inspection category where mobility, sensing, and data capture are combined.
From Reactive Safety to Real-Time Awareness
Integrating gas detection into inspection workflows shifts safety from a reactive process to a continuous, data-driven approach. Operators can make informed decisions during the inspection, rather than relying on assumptions or post-inspection analysis.
This improves:
- Operational control during inspections
- Confidence in inspection data
- Overall safety outcomes for personnel and assets
Inspection technology should reduce uncertainty while maintaining efficiency. Combining real-time gas detection with aerial inspection delivers a more practical and reliable method for managing confined space risk.
Contact us to find out more about Elios 3, or any of our other drone inspection solutions, or request a quote online.
Jason De Silveira, founder and CEO of Nexxis Technology, has always had a sharp focus on robotics, education, and real-world solutions. Throughout his career, he’s stayed committed to pushing the boundaries of robotics and helping industries strengthen their approach to asset integrity and robotic inspection.
With a background in operations, commissioning, and start-ups of new facilities, Jason leads Nexxis with a hands-on understanding of what real projects demand. Under his leadership, Nexxis has become known for developing innovative robotic systems that deliver better data, boost safety, and take the risks out of confined space and working-at-height inspections.
What makes Jason stand out? A passion for innovation, a proven ability to bring people together, and a genuine drive to help clients get the right solution — not just an off-the-shelf fix. With a strong focus on customisation and future-ready technology, he’s helping to shape the next generation of robotics.