The Sensitron SMART 3G-D3 is a SIL2 certified fixed gas detector engineered for reliable monitoring of toxic, flammable, refrigerant, and oxygen gases in industrial and hazardous environments. Designed for both civil and heavy-duty applications, it combines robust construction, continuous self-diagnostics, and flexible sensor options to ensure maximum safety and minimal maintenance. With a clear backlit display, 4–20 mA output, and optional RS485 Modbus communication, the SMART 3G-D3 delivers dependable performance and seamless integration into modern gas detection systems.

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Key Features

• SIL2 hardware and SIL3 software certified for functional safety
• Detects toxic, flammable, refrigerant gases and oxygen deficiency/excess
• Wide range of sensor technologies: electrochemical and infrared
• Rugged aluminium enclosure suitable for harsh industrial environments
• IP55 ingress protection
• 4–20 mA analog output for easy system integration
• Optional RS485 Modbus communication
• 3 relay outputs for alarms and control
• 7-segment backlit display for clear local readings
• Continuous self-diagnostics for reduced maintenance
• Compact, lightweight, and easy to install
• Suitable for Zone 2 and classified hazardous areas