Flammable gas detection
Gas Sensor
The Gas Sensor payload is a drone-born flammable gas sensor that alerts about presence of flammable gases.
Industry-leading safety, low cost of ownership
Flammable Gas Sensor detects and provides immediate warning
The Gas Sensor is able to detect most flammable gases, with known exceptions being CO and H2S (Carbon Monoxide and Hydrogen Sulfide).
This flammable gas sensor is designed to mitigate risk during drone operations and quickly detects, quantifies and classifies flammable gases and mixtures with unprecedented accuracy. See table with gas examples and gas classification key below.
Already factory-calibrated for its entire 15+ years life and with built-in self-testing, no field calibrations are required. You’re all set for years of fail-safe operation. It also provides ambient temperature readings.
The Gas Sensor is another payload for the ScoutDI confined-space inspection ecosystem. It is compatible with all current Scout 137 Drone Systems and ready for orders now.
Key features
✅ Real-time warning of flammable gases
✅ 15+ years lifetime, low cost of ownership:
✅ No calibration required
✅ Built-in self test for fail-safe operation
✅ Also provides ambient temperature readings
✅ Compliant to IEC 60079-29-1:2016
✅ In certification for EN50271 compliance
Pilot interface
Integration with Drone System
The Gas Sensor automatically activates when the drone is powered on. Current gas concentrations are continuously displayed in % LEL in the Scout App status panel.
An on-screen alarm pops up upon combustible gas detection. If the gas concentration reaches the upper threshold, a second warning appears.
Should the Gas Sensor lose connection, the pilot will be warned and the system attempts to reconnect automatically.
All gas concentrations are also recorded with the flight data.
Guaranteed accuracies
List of common gases
Accuracy is guaranteed for methane and hydrogen across the full environmental range. Other gases will typically meet the published tolerances across the full environmental range, but are guaranteed only near standard conditions of 20 ˚C, 50 %Relative Humidity. The sensor is capable of detecting most common flammable gases and vapors, not just the ones listed.
MPS accuracy is listed with reference to ISO 10156.
Gas classes are as follows:
Class 1: Hydrogen.
Class 2: Hydrogen mixture.
Class 3: Methane / natural gas.
Class 4: Light gas or gas mixture (e.g. Ethan, propane, Isopropanol).
Class 5: Medium gas or gas mixture (e.g. Pentane).
Class 6: Heavy gas or mixture (e.g. Octane, Toluene, Xylene).
NOTE THAT the Gas Sensor optional Payload is only meant as an extra layer of safety where other safety precautions are already in place. It is NOT meant as the primary means for combustible gas detection, gas leak detection etc.
| 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 |
| Isobuthane | HC(CH3)3 | 4 | 0-100 | ±5 |
| Isobuthylene | 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 |