Fixed Gas Detection Products
Trolex Sentro X
Trolex Sentro X
The Trolex Sentro X Gas Detector is an advanced, intrinsically safe gas detection system that combines high accuracy with modern connectivity. Designed for continuous monitoring of toxic, flammable, and oxygen gases, it uses hot-swappable, pre-calibrated gBlocs for simple maintenance and instant calibration.
With multiple output options including RS-485, 4–20 mA, and 0.4–2 V, plus optional Power-over-Ethernet (PoE) and dual relay alarms, the Sentro X offers seamless integration with SCADA and IoT systems. Its rugged IP65-rated housing, OLED display, and simple installation make it ideal for mining, tunnelling, and industrial environments.
- Free technical support included
- Complimentary product training available
- Free on-site or virtual demonstration offered
Technical Details
Specifications
- Detection method: Electrochemical, infrared, or catalytic (gas-dependent)
- Measured gases: Toxic, oxygen, and flammable gases (via interchangeable gBlocs)
- Output options: RS-485 MODBUS, 4–20 mA, 0.4–2 V DC
- Optional features: Power-over-Ethernet (PoE), dual relay alarms, audio/visual alarm
- Display: OLED graphic display, clear in all lighting conditions
- Calibration: Pre-calibrated, plug-in gBlocs with auto-configuration
- Power supply: 9.5–16 V DC (intrinsically safe source)
- Ingress protection: IP65 (Controller and Remote Sensor)
- Operating temperature: –20 °C to +40 °C
- Housing: Reinforced PC/ABS polymer, EMC protected
- Mounting: 2 × M8 fixing holes (controller), Unistrut compatible
- Certification: ATEX and IECEx Group I M1, EPL Ma
Key Features
-
Intrinsically safe: Certified for use in Group I hazardous (mining) areas
-
Smart modular design: Plug-in, pre-calibrated gBlocs for toxic, O₂, or flammable gases
-
Flexible integration: Supports RS-485, 4–20 mA, 0.4–2 V, and optional PoE
-
Hot-swappable sensors: Change gBlocs instantly — no tools or downtime
-
OLED display: High-contrast visual output for dark or bright conditions
-
Rugged construction: IP65 housing, shock and vibration resistant
-
Low maintenance: Auto-configuration and easy access design
-
Connectivity ready: MODBUS and IoT integration for real-time monitoring
-
Customisable setup: Optional A/V alarms, dual relays, and Ethernet cards
-
Proven reliability: Built on 65+ years of Trolex gas detection expertise
Industry Applications
The Sentro X Gas Detector is ideal for underground mining, tunnelling, and quarrying, where vibration, dust, and gas hazards are common. It’s equally effective in petrochemical plants, power generation, and industrial processing environments that demand dependable gas monitoring with networked data control.
With intelligent design, PoE capability, and modular gBloc sensing, the Sentro X represents the next generation of connected gas detection.
Trolex Sentro X Gas Detection FAQs
Common questions about the Trolex Sentro X, including gas monitoring, gBlocs, intrinsically safe operation, connectivity, alarms, industrial applications and ongoing support.
What is the Trolex Sentro X?
The Trolex Sentro X is an advanced fixed gas detection system designed for continuous monitoring of toxic, flammable and oxygen gases. It combines interchangeable sensing technology, local indication and multiple communication options for use in demanding industrial and hazardous environments.
Which gases can the Trolex Sentro X detect?
The Sentro X can be configured for different toxic, oxygen and flammable gases depending on the sensing gBloc installed. Electrochemical, infrared and catalytic sensing technologies can be used depending on the gas and application requirements.
What are Trolex gBlocs?
gBlocs are interchangeable, pre-calibrated sensing modules used with the Sentro X. Their plug-in design allows the system to recognise and configure a replacement module, helping to simplify maintenance and minimise detector downtime.
Is the Trolex Sentro X intrinsically safe?
The Sentro X is designed as an intrinsically safe gas detection solution and is certified for Group I applications. Correct equipment selection and installation must always be based on the hazardous-area classification and requirements of the individual site.
Where can the Trolex Sentro X be used?
The Sentro X is particularly suited to demanding applications such as mining, tunnelling and other industrial environments where continuous fixed gas monitoring, robust construction and reliable system integration are required.
What output and communication options does Sentro X provide?
The Sentro X supports RS-485 MODBUS, 4–20 mA and 0.4–2 V DC output options. These provide flexibility when integrating the detector with compatible monitoring, control and automation systems.
Does the Trolex Sentro X support Power over Ethernet?
Power over Ethernet (PoE) is available as an optional Sentro X feature. This can provide additional flexibility when designing compatible gas detection and monitoring installations.
Does the Sentro X have built-in alarms?
The Sentro X can provide local gas information through its OLED display and supports alarm functionality including optional dual relay alarms and audio/visual alarm options. This enables the system to provide clear local indication of configured gas alarm conditions.
How does Sentro X fit into a fixed gas detection system?
The Sentro X can form part of a wider Trolex fixed gas detection system, with its communication and analogue output options allowing detector information to be integrated into compatible monitoring and control equipment. MTI can help determine the appropriate configuration for a particular site or application.
Can MTI supply and support the Trolex Sentro X?
Yes. MTI supplies Trolex fixed gas detection equipment and can assist with product selection, system configuration, installation requirements and ongoing maintenance. Visit our fixed gas detection service and support page or contact MTI to discuss your gas detection requirements.
