The Scout Flammable Gas Sensor for the Scout 137 Drone is a specialized drone-mounted device that detects and alerts operators to flammable gases in the environment, forming an essential part of the ScoutDI confined-space inspection ecosystem. Key features include real-time warnings for enhanced safety, a lifespan of over 15 years with low ownership costs, no need for field calibrations due to factory calibration and built-in self-testing, additional ambient temperature readings, and compliance with IEC 60079-29-1:2016, with ongoing certification for EN50271.

Technical Specifications
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Detection Capabilities: Detects most flammable gases, excluding Carbon Monoxide (CO) and Hydrogen Sulfide (H₂S).
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Automatic Activation: The Gas Sensor activates automatically when the drone powers on.
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Continuous Monitoring: Displays current gas concentrations in % LEL (Lower Explosive Limit) on the Scout App status panel.
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Alarm System: On-screen alarms trigger upon detection of combustible gases. A secondary alarm activates if gas concentrations reach the upper threshold.
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Data Logging: All gas concentrations are recorded alongside flight data for analysis.
Guaranteed Accuracies
The sensor ensures accurate detection for methane and hydrogen across a wide range of environmental conditions. Other gases typically meet published tolerances, primarily under standard conditions (20˚C, 50% Relative Humidity). The sensor’s accuracy is validated against ISO 10156 standards.
Common Gases Detection Table
Gas |
Formula |
Class |
Detection Range [% LEL] |
Accuracy (0-50 % LEL) |
Butane |
C4H10 |
4 |
0-100 |
±5 |
Ethane |
C2H6 |
4 |
0-100 |
±5 |
Hydrogen |
H2 |
1 |
0-100 |
±5 |
Isobutane |
HC(CH3)3 |
4 |
0-100 |
±5 |
Isobutylene |
C4H8 |
4 |
0-100 |
±5 |
Isopropanol |
C3H8O |
4 |
0-100 |
±10 |
Methane |
CH4 |
3 |
0-100 |
±3 |
Methyl Ethyl Ketone |
C4H8O |
5 |
0-100 |
±5 |
Octane |
C8H18 |
6 |
0-100 |
±12 |
Pentane |
C5H12 |
5 |
0-100 |
±5 |
Propane |
C3H8 |
4 |
0-100 |
±6 |
Propylene |
C3H6 |
4 |
0-100 |
±5 |
Toluene |
C7H8 |
6 |
0-100 |
±12 |
Xylene |
C8H10 |
6 |
0-100 |
±12 |
Note
The Gas Sensor is intended to be an additional safety measure, complementing existing safety protocols. It is not designed as a primary means for combustible gas or gas leak detection.
Pilot Interface & Integration
The Gas Sensor integrates with the Scout 137 Drone System, enhancing operational safety through:
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Continuous Display: Gas concentrations are displayed in real-time within the Scout App.
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Automatic Warnings: Alerts are issued immediately upon detecting flammable gases.
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Connection Monitoring: If the Gas Sensor loses connection, an alert is provided, and the system attempts to reconnect automatically.