XF-CQ15Tunnel Air Quality Monitoring System for Safety & Ventilation
The tunnel air quality monitoring system is an intelligent environmental monitoring system specifically designed for tunnels, underground passages, and enclosed transportation spaces. It monitors key parameters such as carbon monoxide (CO), nitrogen dioxide (NO₂), visibility, particulate matter, airflow, temperature, and humidity. Featuring real-time data transmission, high monitoring accuracy, and stable operation, it provides robust support for smart traffic management in highway, railway, and urban tunnel projects.
- Output: 4-20mA/RS485
- Voltage – Supply: 220V
- Measuring range: VI: 35*10-3 1/m ; CO: 0-500ppm
- Test accuracy: VI: ±0.00001 1/m; CO: ±1 ppm
- Ambient temperature: -40℃ to 65℃
- Ambient humidity: 0-100%RH (non-condensing)
Price: $1460-$1640
Introduction
Tunnel air quality monitoring is widely used in highway tunnels, railway tunnels, subway systems, and other underground infrastructure with limited air circulation. Tunnels are specialized tubular structures characterized by confined spaces and enclosed environments. If exhaust emissions from vehicles traveling through tunnels are not promptly and properly vented, the resulting accumulation of CO and particulate matter directly jeopardizes the safety of both drivers and passengers as well as maintenance personnel. The tunnel gas monitoring system is designed to collect VI/CO data in real time and provide it to traffic regulatory authorities, serving as a basis for decision-making regarding tunnel ventilation and road safety.
Structure tunnel gas monitoring system
- Gas Monitoring Sensors: Detect CO, NO₂, O₂, SO₂, and other harmful gases inside the tunnel.
- Particulate Matter Sensor: Monitors PM2.5, PM10, dust concentration, and airborne pollutants.
- Capteur de visibilité: Measures tunnel visibility and smoke density to ensure driving safety.
- Wind Speed & Airflow Sensor: Detects airflow direction and ventilation efficiency within the tunnel.
- Temperature & Humidity Sensor: Monitors environmental temperature and humidity changes in real time.
- Data Acquisition Unit: Collects, processes, and transmits monitoring data from all sensors.
- Communication Module: Supports RS485, Modbus, Ethernet, 4G, or wireless remote transmission.
- Ventilation Control System: Automatically controls tunnel fans and ventilation equipment based on air quality data.
- Alarm & Warning System: Sends real-time alerts when pollutant levels exceed safety limits.
- Monitoring Software Platform: Provides remote monitoring, historical data storage, analysis, and intelligent management.
Détails Afficher
Featuring an industrial-grade compact design with a rugged, durable housing, it offers excellent dustproof, waterproof, and anti-interference performance, making it ideal for complex tunnel environments. From every angle, it fully demonstrates the professional attention to detail in the tunnel air quality monitoring system’s intelligence, stability, and engineering adaptability. Below are the details shown for the tunnel air quality monitoring:
Spécifications
Tunnel air quality monitoring supports real-time monitoring of key parameters such as visibility (VI) and carbon monoxide (CO). It allows for flexible adjustment of monitoring intervals based on on-site requirements, enabling real-time monitoring of visibility and gas parameters, and supports multiple data output formats. Below are the specifications for the tunnel air quality monitor:
Paramètres
| Plage de mesure | VI: 35*10-3 1/m ; CO: 0-500ppm |
| Measuring distance | 3 meters, reflection 6 meters |
| Test accuracy | VI: ±0.00001 1/m; CO: ±1 ppm |
| Ambient temperature | -40ºC to 65ºC |
| Ambient humidity | 0-100%RH (non-condensing) |
| Test time | 1-120 seconds adjustable |
| Communication interface | The two 4-20mA channels correspond to VI and CO values respectively, and the maximum impedance is 500 ohms One digital RS485 output |
| Supply voltage | 220V±15%VAC 50HZ |
| Maximum power consumption | Maximum 10W, rated 5W |
| Protection class | IP65 |
| Installation mode | Wall mounting |
| Machine weight | 18KG (including instrument, bracket, electrical junction box, etc.) |
Features tunnel air quality monitoring
Continuous Detection
Provides uninterrupted monitoring of tunnel environmental conditions.
Fast Response Speed
Quickly responds to air quality changes inside the tunnel.
Industrial Grade Housing
Designed for humid, dusty, and complex tunnel environments.
Reliable Data Output
Supports stable wired and remote communication transmission.
Smart Alarm System
Sends automatic warnings when monitored values exceed limits.
Energy Saving Design
Low power consumption supports long-term continuous operation.
Applications tunnel air quality monitor
Tunnel environmental monitoring systems are widely applied in enclosed and semi-enclosed transportation environments to ensure safe operation, efficient ventilation control, and compliance with environmental standards. They play a key role in maintaining air quality stability, protecting drivers and passengers, and supporting intelligent transportation infrastructure management.
Highway Tunnels
Monitors vehicle exhaust gases, visibility, and ventilation efficiency to ensure safe and smooth traffic flow.
Railway Tunnels
Maintains stable air quality and smoke control to support safe and continuous train operation.
Metro Systems
Ensures underground passenger comfort by regulating air freshness and pollutant levels.
Mountain Tunnels
Provides real-time monitoring of long and deep tunnel environments with complex airflow conditions.
Urban Underground Passages
Improves air circulation and reduces pollutant buildup in pedestrian and vehicle shared spaces.
Smart Transportation Systems
Integrates with intelligent platforms for automated ventilation and remote monitoring management.
Cas
We have provided stable and reliable tunnel air quality monitoring solutions for numerous tunnel projects worldwide, covering a wide range of applications, including highway, railway, and urban underground transportation systems. Each case study demonstrates the system’s high-precision monitoring capabilities in complex environments, its stable operational performance, and its seamless compatibility with intelligent ventilation control systems. By showcasing real-world project applications, we help users gain a more intuitive understanding of the product’s performance and value in actual engineering projects.
custom tunnel air quality monitoring
Tunnel air quality monitoring systems can be flexibly customized to meet different project requirements, environmental conditions, and integration standards. From sensor configuration to communication protocols and structural design, each solution can be tailored to ensure accurate monitoring performance and seamless compatibility with various tunnel control systems.
Options de personnalisation
- Sensor Configuration
Custom selection of gas, dust, visibility, temperature, and humidity sensors based on project needs. - Measurement Range
Adjustable detection ranges for CO, NO₂, visibility, and particulate matter levels. - Output Signal
Supports RS485, Modbus, 4-20mA, and other industrial communication interfaces. - Power Supply Options
Flexible AC/DC power configurations for different installation environments. - Structural Design
Customized housing size, material, and installation type for specific tunnel conditions. - Alarm Threshold Settings
Adjustable warning limits for gas concentration and visibility levels. - Data Integration
Compatible with SCADA, IoT platforms, and intelligent traffic control systems. - Environmental Protection Level
Enhanced IP ratings for extreme humidity, dust, and corrosive environments.
tunnel air quality monitoring manufacturer and supplier
Yantai Sensor is a professional tunnel air quality monitoring manufacturer and supplier, specializing in advanced environmental monitoring solutions for modern transportation infrastructure and smart tunnel systems. Our systems are designed as high-performance tunnel environmental monitoring system devices, integrating precise detection of CO monitoring tunnel, NO₂ detector tunnel, visibility, dust, temperature, and humidity, along with real-time data acquisition and optional RS485, 4G, or industrial communication interfaces to support efficient and intelligent tunnel ventilation control systems. These solutions are widely used in highway tunnels, railway tunnels, metro systems, and underground infrastructure projects to ensure safe driving conditions, stable air quality, and improved operational efficiency.
With strong R&D capability and strict quality control standards, each tunnel air quality monitoring system ensures stable performance in harsh and complex tunnel environments. We offer flexible OEM/ODM services to deliver customized tunnel air quality monitoring solutions, helping enhance safety management, energy efficiency, and intelligent transportation system integration. Contactez nous today to get reliable tunnel air quality monitoring systems and customized environmental monitoring solutions for your smart tunnel and transportation projects.
