Gas Detector Sensors – Geonica

Reliable Gas Monitoring for Tunnel Safety, Air Quality & Industrial Applications

The Geonica Gas Detector Sensors series is designed for continuous monitoring of hazardous and pollutant gases in road tunnels, industrial environments, and air quality monitoring systems. These sensors are essential for detecting gases such as carbon monoxide (CO), carbon dioxide (CO₂), oxygen (O₂), nitrogen oxides (NO/NO₂), helping ensure safe operating conditions in enclosed or high-risk environments. Among the most widely used models is the GEO-504/CO Carbon Monoxide Sensor, specifically developed for tunnel environments where vehicle emissions can accumulate and pose serious safety risks. These sensors are integrated into tunnel ventilation systems, enabling automatic control of airflow and maintaining safe air quality levels for drivers and personnel.

Key Features:

  • 🛢️ Accurate Gas Concentration Measurement

    The sensors provide linear output signals proportional to gas concentration, ensuring precise monitoring of harmful gases like carbon monoxide.

  • ⚡ Fast Response & High Sensitivity

    Typical response time is ≤ 15 seconds (t90) with sensitivity around 0.5 ppm, allowing rapid detection of dangerous gas levels.

Key Features:

  • 📡 Industrial Output & Integration

    Supports 4–20 mA analog output and standard power supply (13.5–30 VDC), making it easy to integrate with SCADA, PLCs, and tunnel automation systems.

  • 🌡️ Wide Operating Conditions

    Operates reliably in environments ranging from -20°C to +50°C (sensor) and up to -40°C to +85°C (electronics), suitable for harsh tunnel and industrial conditions.

Applications:

  • 🚇 Road Tunnel Safety Systems

    Monitors toxic gases from vehicle emissions and activates ventilation systems to maintain safe air quality.

  • 🏭 Industrial & Process Plants

    Used in factories, refineries, and confined spaces for continuous gas monitoring and worker safety.

  • 🌫️ Air Quality Monitoring Networks

    Supports environmental monitoring of pollutant gases in urban areas and transport infrastructure.

  • 🔥 Emergency & Hazard Detection

    Provides early warning of dangerous gas buildup in enclosed environments, reducing risk of accidents and health hazards.

Why Choose This Solution?

The Geonica Gas Detector Sensors provide dependable gas monitoring with robust industrial performance.

Accurate & Stable Measurements

Linear signal output ensures precise and consistent gas concentration monitoring.

Easy System Integration

Compatible with modern automation systems, including SCADA and tunnel control platforms.

Fast Detection for Safety-Critical Use

Quick response time helps prevent dangerous situations before they escalate.

Designed for Harsh Environments

Durable construction ensures reliable operation in tunnels, industrial sites, and outdoor installations.

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