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.

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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.

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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.

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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.

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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.

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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.

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PAS-AF300

The PAS-AF300 is part of Sapiens high-performance Portable Air Station (PAS) series. Designed for deployment simplicity and unwavering stability, it delivers exceptional data quality for ambient and indoor air monitoring. It accurately measures key pollutants including PM₁, PM₂.₅, PM₁₀, NO₂, O₃, CO, SO₂, and NO, with optional monitoring of TVOC and CO₂. Engineered for demanding applications, the PAS-AF300 meets the needs of government agencies, research projects, and indoor air quality certification programs requiring dependable, high-quality data.

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PAS-PM

The PAS-PM dust particle counter adopts the principle of laser scattering, based on Mie scattering theory. The PAS-PM has a high performance particle counter which can measure up to 52 size channels of particulate matters with simultaneous output on PM₁, PM₂.₅ and PM₁₀ mass concentration and near reference data quality under all weather conditions. It is a perfect addition to any cleanroom or controlled environment monitoring application. Furthermore, the smart heater module is included to remove the moisture from PM that may affect the concentration measurements for outdoor applications.

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Sapiens Lotus PES

PES-PM F6 is compatible with various 47 mm filter membranes including Teflon, Quartz, and Polycarbonate, employing innovative technology to concentrate particles onto a 6 mm diameter spot. This approach ensures high particle accumulation per unit area and enables multiple samplings on a single filter. Equipped with a micro-impactor for precise PM₂.₅ or PM₁₀ selection, featuring extended battery life with replaceable batteries.

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Sapiens MASEN Pro

The MASEN Pro is the high-end flagship of the Mobile Air Sensor Network (MASEN) series, engineered for professionals demanding laboratory-grade accuracy from a moving platform. Vehicle-mounted and purpose-built for real-time mapping of air pollution across diverse road environments, it delivers reliable, automatically quality-controlled data where traditional fixed stations cannot reach. Simultaneously monitor up to 6-8 critical gases—including NO₂, O₃, CO, and SO₂ with near-reference quality—even in challenging weather. Customize with optional NO, TVOC, or CO₂ sensors.

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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 Chung, Bayview Garden, Shatin, Lam Tin, Hong Kong

Enclosed bus terminals have long posed a persistent challenge for managing community air quality. To address this issue, Electrical and Mechanical Services Department, HKSAR Government have deployed Sapiens' advanced NAS AF300 air quality sensors to closely monitor pollutants such as NO, NO2, CO, CO2, and PM2.5 generated by traffic emissions within these terminal facilities. The high-density air quality monitoring network solutions creates real-time air pollution maps, enabling the identification of hotspots and the diagnosis of key contributors to air quality problems.

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