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Tunnels, Parking & Transportation Hubs Environment Monitoring
Sapiens delivers robust monitoring systems for air quality in confined spaces such as tunnels and parking hubs. Our technology ensures safe and healthy conditions in high-traffic areas, supporting regulatory compliance.
  • Reduced Maintenance and Long-Term Stability
    Features like automatic baseline tracking and remote system checking minimize the need for frequent on-site maintenance, ensuring long-term stability and reliability of the monitoring systems while reducing operational costs.
  • Reliable Performance in Challenging Conditions
    Designed to resist high temperatures and humidity, Sapiens compact and easy-to-install packages deliver consistent monitoring even in harsh environmental conditions typical of underground and enclosed infrastructures.
  • Comprehensive Monitoring for High Pollution Levels
    With dynamic concentration ranges and comprehensive pollutant coverage, Sapiens systems effectively monitor high levels of pollutants, providing thorough assessments necessary for managing air quality in areas prone to heavy emissions.
  • Certification and Verification

    · Calibration Certificate: Each Sapiens monitoring system is accompanied by a calibration certificate, verifying that the device has been tested and calibrated to meet specified performance criteria.

    · MCERTS Verified Performance: MAS Series have undergone rigorous evaluation and have been certified under the Monitoring Certification Scheme (MCERTS), affirming their quality and reliability in environmental monitoring applications.

    · ISO Quality System Certified: Sapiens operates under an ISO-certified quality management system, reflecting our commitment to maintaining high standards in product development, manufacturing, and customer service.


    Functions and Features
    • Compact Package for Easy Installation: Sapiens' monitoring systems are designed with a streamlined form factor, facilitating straightforward      installation in confined spaces such as tunnels, parking structures, and transportation hubs, thereby minimizing disruption to operations.

    • Resistance to High Temperature and Humidity Environments: Engineered to withstand extreme conditions, our systems maintain reliable performance in environments characterized by elevated temperatures and humidity levels, ensuring consistent data accuracy.

    • Dynamic Concentration Range for High Pollution Levels: Our technology is capable of accurately detecting and measuring a wide spectrum of pollutant concentrations, effectively monitoring environments with fluctuating or elevated pollution levels.

    • Comprehensive Pollutant Coverage: Sapiens' solutions monitor a broad array of pollutants, including particulate matter and various gases, providing a holistic assessment of air quality within transportation infrastructures.


    Popular Products Incude

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    MAS-AF300
    MAS-AF300 is the flagship model of Sapiens Mini Air Station (MAS) series products for high performance and long-term outdoor air quality monitoring with integrated autonomous data quality control capabilities. The product can measure criteria air pollutants including particulate matters (PM₁, PM₂.₅, PM₁₀, TSP), nitrogen dioxide (NO₂), ozone (O₃), carbon monoxide (CO), sulfur dioxide (SO₂) and nitric oxide (NO) with near reference data quality under all weather conditions.
    MAS-AF310
    MAS-AF310 is the flagship model of Sapiens Mini Air Station (MAS) series products for high performance and long-term outdoor air quality monitoring with integrated autonomous data quality control capabilities. The product can measure criteria air pollutants including particulate matters (PM₁, PM₂.₅, PM₁₀, TSP), nitrogen dioxide (NO₂), ozone (O₃), carbon monoxide (CO), sulphur dioxide (SO₂), nitric oxide (NO) and carbon dioxide (CO₂) with near reference data quality under all weather conditions, and total volatile organic compounds (TVOC) at high accuracy.
    MAS-Dust
    MAS Dust is engineered for high-performance, long-term outdoor particulate matter monitoring, featuring integrated autonomous data quality control. Equipped with an advanced particle counter based on light scattering technology (optical approach), it simultaneously measures mass concentrations of PM₁, PM₂.₅ (FSP), PM₁₀ (RSP), and TSP.
    MAS-EMS
    The MAS EMS is a compact environmental monitoring system providing air quality, noise and meteorological data. It is invaluable for environmental consultants, urban planners, and health professionals to make informed decisions and ensure safety and compliance.
    MAS AF300 Plus
    Uniquely equipped with self-regulating temperature and humidity controls, ensuring data accuracy even in rapidly changing and extreme environments. MAS AF300 Plus is ideal for diverse applications and different weather conditions, delivering reliable air quality data.
    MAS Odour Plus
    The MAS Odour Plus is a compact, professional-grade air monitoring station designated to automatically stabilise the internal environment of the monitoring station to compensate for abrupt fluctuations in ambient temperature, ensuring optimal sensor performance in extreme outdoor conditions.

    Case Studies

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    Incident Response at Central-Wan Chai Bypass Tunnel with Comprehensive Air Quality Monitoring in Hong Kong
  • Sector:Tunnel, Parking and Transportation Hubs
  • Location:Central, Wan Chai, Hong Kong
  • In response to a ventilation system malfunction at Tunnel East Ventilation Building in Hong Kong, Sapiens rapidly deployed multiple autonomous MAD-AF300 monitoring stations to provide real-time air quality data focused on oxides of nitrogen and PM for the tunnel and surrounding areas. This monitoring data supplemented the Highway Department’s investigation, helping to assess the environmental impact and formulate emergency response solutions.
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    High Density Sensor Network Inside Bus Terminus to Monitor Air Quality for Hotspot Identification
  • Sector:Tunnel, Parking and Transportation Hubs
  • Location:Kwai Chong, Bayview Garden, Shatin, Lam Tin, Hong Kong
  • The air quality inside the semi-enclosed bus terminus has been a great challenge in urban settings. Sapiens air sensors (NAS-AF300) is used in Hong Kong by government agencies to closely monitor the air pollutants of NO, NO2, CO, CO2 and PM2.5 from traffic emission inside the bus terminus. The high-density network creates a real time air pollution map to identify the hotspot of air pollution and diagnose the critical causes of the air pollution issues. It also helps to evaluate the effectiveness of the mitigation measures.
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