Fixed Gas Detection Products
Trolex Sentro 1 Gas Detector
Trolex Sentro 1 Gas Detector
The Trolex Sentro 1 Universal Gas Detector provides accurate and continuous monitoring of toxic and flammable gases in demanding industrial and mining environments. Designed for maximum reliability, it features an integrated high-intensity audio/visual alarm for wide-area alerts, ensuring immediate safety response.
Built around the intelligent Sentro eModule, each pre-calibrated sensing module can be replaced within seconds — even while powered — making maintenance fast and simple. With auto ZERO and SPAN calibration, a clear LCD display, and full 4–20 mA analogue output, the Sentro 1 delivers dependable protection for mining, tunnelling, oil & gas, utilities, and process plant operations.
- Free technical support included
- Complimentary product training available
- Free on-site or virtual demonstration offered
Technical Details
Specifications
- Detection method: Electrochemical or infrared (gas-dependent)
- Measured gases: CO, H₂S, O₂, CH₄, CO₂ – others available on request
- Output signal: 4–20 mA DC
- Supply voltage: 7.5–16.5 V DC
- Response time (T90): < 30 s typical
- Display: Large backlit LCD with diagnostic data
- Calibration: Auto ZERO and SPAN via on-screen instructions
- Alarm type: Integrated audio/visual with confidence alert
- Alarm sound level: 85 dB @ 1 m (12 V DC)
- Alarm indication: Flashing LED + audible tone
- Operating temperature: –20 °C to +40 °C
- Humidity: 90 % RH (non-condensing)
- Housing: Reinforced dual-wall polymer, anti-static
- Ingress protection: IP65 (housing), IP54 (gas port)
- Mounting: 2 × 6.5 mm holes (Unistrut 6946 compatible)
- Weight: 650 g
- Certifications: ATEX, IECEx, ANZEx, MASC, DGMS, CIMFR – Group I (Mining) approved
Key Features
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Universal gas detection: Detects a wide range of toxic and flammable gases
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Modular design: Plug-in Sentro eModules for fast, power-on replacement
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Simple calibration: Auto ZERO/SPAN with clear on-screen guidance
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Integrated alarms: Bright LEDs + 85 dB sounder for wide-area coverage
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Rugged housing: Dual-wall moulded construction for maximum durability
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High visibility display: Backlit LCD shows live readings and diagnostics
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TWA/STEL calculation: Automatic exposure limit tracking for toxic gases
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Infrared range switching: Auto-ranging IR sensor for accurate CH₄ detection
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Certified safe: Intrinsically safe for underground mining (Group I Ma)
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Fast servicing: Tool-free eModule change, even while powered
Industry Applications
The Sentro 1 Gas Detector is engineered for underground mining, tunnelling, and oil & gas operations, where fast, reliable gas detection is critical to safety. Its integrated alarm system makes it ideal for storage areas, utilities, and process plants, providing wide-area coverage and dependable protection in harsh, high-risk environments.
With modular sensing technology, rugged IP65 design, and international certification, the Sentro 1 is trusted for continuous safety monitoring across the most challenging industrial sectors.
