Fixed Gas Detection Products
Trolex Sentro 8 Gas Detection Station
Trolex Sentro 8 Gas Detection Station

The Trolex Sentro 8 Gas Detection Station is a fixed multi-gas monitoring system designed for continuous detection of toxic, flammable, and environmental gases. It can monitor up to eight gases or remote sensors simultaneously using intelligent plug-and-play eModules that are hot-swappable for fast, tool-free maintenance.
With an integrated LCD display, visual and audible alarms, and RS-485 MODBUS connectivity, the Sentro 8 offers flexible, reliable gas detection for mining, tunnelling, and industrial safety applications.
- Free technical support included
- Complimentary product training available
- Free on-site or virtual demonstration offered
Technical Details
Specifications
- Detection method: Electrochemical, catalytic, or infrared (gas-dependent)
- Measured gases: O₂, CO, CO₂, CH₄, H₂S, SO₂, NO₂, NH₃ – and others via interchangeable eModules
- Capacity: Up to 8 gas eModules and/or rModules (remote inputs)
- Outputs: 4 independent alarm relays (2 A @ 230 V AC), RS-485 MODBUS communications
- Power supply: 24 V DC or 85 – 265 V AC (general purpose) | 12 V DC (Group I)
- Response time (T90): < 20 s average
- Operating temperature: –10 °C to +40 °C
- Humidity: 90 % RH (non-condensing)
- Ingress protection: IP65 housing / IP54 gas port
- Housing material: Reinforced anti-static polymer (IP65 dual-wall)
- Display / controls: Backlit LCD with keypad for setup and alarm configuration
- Alarm type: Integrated LED visual alarm and 95 dB audible sounder @ 300 mm
- Weight: 2.8 kg
- Mounting: 2 × M6 holes (Unistrut 6946 compatible)
- Communications: RS-485 MODBUS compatible
- Certification: ATEX, IECEx, EAC, MASC, Ukraine Group I and II
Key Features
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Multi-gas monitoring: Detects up to 8 different gases or environmental conditions simultaneously
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Hot-swappable modules: Pre-calibrated eModules can be changed while powered
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Integrated alarms: Bright LED and 95 dB sounder for instant hazard alerts
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Flexible connectivity: RS-485 MODBUS output for networked control systems
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Programmable relays: Four independent relays for custom logic and safety control
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Environmental inputs: Supports flow, pressure, temperature, and vibration rModules
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Rugged housing: Dual-wall IP65 enclosure resists dust, moisture, and impact
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Quick servicing: Plug-and-play calibration and maintenance in seconds
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Certified safety: ATEX, IECEx, and MASC Group I approved for hazardous areas
Industry Applications
The Sentro 8 Gas Detection Station is trusted in mining, tunnelling, power generation, petrochemical, wastewater, and manufacturing environments.
Its modular design allows easy adaptation for underground ventilation, fuel storage monitoring, and environmental safety systems, ensuring full compliance and continuous protection in harsh and confined industrial conditions.