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Solutions & Products for Government Authorities

Government authorities rely on high-quality, reliable environmental data to enforce regulations, support compliance, and contribute to broader environmental management and public health initiatives. Sapiens offers a suite of monitoring solutions tailored to meet the rigorous demands of governmental environmental agencies, delivering data that stands up to the standards required for regulatory, enforcement, and scientific applications.

Professional-Grade Monitoring

Certified and calibrated sensors providing near-reference data quality, suitable for compliance and regulatory standards.

Traceable Data & Verified Performance

International certifications and traceable on-site calibration ensure data reliability, enhancing credibility in public reports and scientific studies.

Comprehensive Pollutant Coverage

Monitors multiple pollutants simultaneously, with options for real-time particle size distribution for source identification.

Smart Data Analytics & Modelling Support

Integrated with SEIN platform analytics for automated data validation, source apportionment, and compatibility with air quality modeling.

Remote System Management & Reduced Maintenance

Enables remote access and system monitoring, minimizing manual checks and ensuring operational continuity.

Supports Enforcement and Compliance

Sapiens systems provide reliable data for enforcing environmental regulations, ensuring industries and municipalities adhere to air quality standards.

Data for Environmental and Health Policy Development

High-quality data on pollution levels and sources informs policy decisions aimed at reducing health risks and environmental impacts.

Enhances Air Science and Modeling Studies

Sapiens’ precise and validated data integrates seamlessly with scientific models, enhancing the accuracy and depth of air quality research.

Public Transparency and Community Trust

Consistent, traceable data bolsters public trust, enabling transparent communication with communities about environmental health and safety.

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 (PM?, PM?.?, PM??, TSP), nitrogen dioxide (NO?), ozone (O?), carbon monoxide (CO), sulfur dioxide (SO?) 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 (PM?, PM?.?, PM??, TSP), nitrogen dioxide (NO?), ozone (O?), carbon monoxide (CO), sulphur dioxide (SO?), nitric oxide (NO) and carbon dioxide (CO?) 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 PM?, PM?.? (FSP), PM?? (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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Sapiens IAQ Pro

The Sapiens IAQ Indoor Air Quality Monitor is a cutting-edge, compact sensor system designed for real-time monitoring of key indoor air pollutants, including PM?.?, PM??, NO, NO?, O?, CO, CO?, TVOC, formaldehyde, environmental factors like temperature and humidity, and also noise measurement. With simultaneous multi-pollutant detection, advanced humidity-correction algorithms, and versatile connectivity (4G, Wi-Fi, and RS485), it delivers precise, reliable data for different scenario environments.

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Sapiens PEK-Eco

PEK-Eco is a high-performance portable personal exposure monitor （PEK）designed for micro-environment air quality monitoring and personal exposure assessment. Compact and lightweight, the device is smartphone-sized for easy portability. The device offers one-touch operation, ultra-quiet performance, and reliable monitoring data, making it ideal for both personal use and professional research applications.

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Sapiens PEK Pro

The PEK-Pro redefines personal air quality monitoring as the flagship model in Sapiens’ next-generation exposure monitoring kits. Engineered to be as portable as your smartphone, this pocket-sized monitoring device delivers validated, real-time tracking of airborne pollutants and environmental factors. With simple operation and ultra-quiet design, it effortlessly integrates into daily routines while capturing professional-grade data for exposure studies or on-site monitoring.

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NAS AF300

NAS-AF300 is a light weight and compact air monitoring station with PM sensor for real time PM measurements and up to 4 or 6 gas pollutants measurements using active pumping approach with auto zero function for drift correction. NAS-AF300 can measure criteria air pollutants including particulate matters (PM?.?, PM??), nitrogen dioxide (NO?), ozone (O?), carbon monoxide (CO), sulfur dioxide (SO?) with near reference data quality under all weather conditions. Other important air pollutants including nitrogen monoxides (NO) and carbon dioxide (CO?) are optional.

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Sensor Tube DF4/DF5

The Sensor Tube DF-4/DF-5 is designed for air monitoring applications in locations without a power supply, allowing for extended monitoring periods without interruption. It supports up to four gas modules, which can be configured at the time of purchase, including ozone (O?), nitrogen dioxide (NO?), nitrogen monoxide (NO), carbon monoxide (CO), carbon dioxide (CO?), sulfur dioxide (SO?), and hydrogen sulphide (H?S). The PM module, available only for the DF-5, enables simultaneous measurements across multiple PM size channels for accurate PM (PM?, PM?.? and PM??) monitoring.

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Sapiens Sirius-E3

Accurately monitoring vessel emissions demands precision beyond fixed sensors or manned patrols. Our UAV-mounted emission surveillance platform delivers targeted, real-time pollution analytics for individual ships – transforming maritime environmental enforcement. How It Works: Smart Target Acquisition - Infrared scanning identifies vessel smokestacks and plume trajectories during approach/departure. Plume Penetration Sampling - High-response gas sensors (SO?, CO?, etc.) with aspirated air paths perform multi-point plume analysis during controlled UAV transects. Real-Time Emission Factor C

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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 PM?, PM?.?, PM??, NO?, O?, CO, SO?, and NO, with optional monitoring of TVOC and CO?. 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 PM?, PM?.? and PM?? 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 PM?.? or PM?? selection, featuring extended battery life with replaceable batteries.

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Sapiens Lotus PES

The PES-Gas C6 gas sampler is equipped with a 6-channel DNPH sorbent tube system. Its micro-electromechanical control system precisely regulates the opening and closing of sampling channels, enabling automated sequential sampling across the sorbent tube array. The compact ozone scrubber maintains high ozone removal efficiency without introducing additional airflow resistance. Featuring a modular sorbent tube tray design, it allows users to flexibly replace tubes of different specifications, significantly expanding the device's application scenarios.

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Sapiens Lotus PES

The PES-Gas T6 gas sampler employs traditional chemical absorption impingers as independent sampling media across its six channels, with each channel allowing for customizable sampling duration and interval cycles. An precise flow control system ensures accurate air volume measurement, providing a reliable data foundation for pollutant concentration calculations. This unit is capable of collecting samples with hourly time resolution, supporting the offline analysis of various volatile organic compounds (VOCs) and thereby providing technical support for high-precision pollutant source apportion

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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 NO?, O?, CO, and SO? with near-reference quality—even in challenging weather. Customize with optional NO, TVOC, or CO? sensors.

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Case Studies

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Measurement of Particulate Matter at Construction Site at Northern District

Sector：Construction

Location：Northern District, Hong Kong

The dust pollution brought by construction activity not only deteriorates the environment but also causes respiratory health issues to the workers and surrounding citizens. According to the Hong Kong Air Pollution Control (Construction Dust) Regulation, the constructor have to adopted dust prevention action to minimize the dust emitted. To effectively monitor dust levels and ensure the regulation compliance of the constructors, The Hong Kong Environmental Protection Department (EPD) has utilized advanced technology, specifically the Sapiens MAS-Dust sensor. Sapiens MAS-Dust sensors are str

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Real-time Odour Monitoring for Source Identification Near the Waterfront

Sector：VOCs and Odour Monitoring and Sampling

Location：Tsuen Wan, Hong Kong

Sapiens provided real-time, high-resolution detection of key Odourants including H2S, NH3, and TVOCs for the Hong Kong Environmental Protection Department, The Government of HKSAR empowering them to understand and manage odour issues in the waterfronts. By strategically deploying monitors MAS near potential sources and analysing meteorological data, Sapiens' solutions enable effective prevention and mitigation of odorous gases, safeguarding the well-being of local communities. Hong Kong Environmental Protection Department conducted a series of investigations with Sapiens' sensor to find

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Powering Hong Kong's Smart City with IoT Lampposts

Sector：Ambient and Communities

Location：Kowloon, Hong Kong

Sapiens NAS provides real-time data on critical urban air pollutants, empowering city planners and environmental authorities to gain insights into the area's air quality. By leveraging this data-driven intelligence, the project team plans to use data from this network to make more informed decisions to enhance sustainability and liveability in different districts, supporting Hong Kong's broader smart city transformation. And it has paved the way for wider adoption of NAS sensors in similar smart city technologies across the region. In a smart city prove-of-concept (PoC) project, Sapiens as

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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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Shenzhen Yantian Port Long-term Emission Monitoring

Sector：Traffic and Marine Emission

Location：Shenzhen, China

The Pearl River Delta (PRD) stands as one of the three biggest port clusters in China, playing a vital role in the nation’s trade and transportation efficiency. However, this thriving development comes at a cost, as the shipping activities generate substantial emissions of greenhouse gases and pollutants, including CO2 and SO2. These emissions not only pose health risks to residents of coastal cities but also exacerbate air quality issues in the surrounding areas.

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Dust & Noise Monitoring and Early Warning System in Shenzhen

Sector：Construction

Location：Shenzhen, China

Recognizing the need to mitigate construction noise impacts, the Shenzhen Municipal Ecological Environment Bureau-Luohu Management Bureau carried out construction site noise monitoring work at a construction site in Luohu District. This innovative system automatically alerts site managers to noise level violations, empowering rapid mitigation to uphold environmental regulations and protect community wellbeing- a testament to sustainable urban development.

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Smart Enforcement of Ship Emission Regulations in Hong Kong

Sector：Drone-Based Monitoring and Sampling

Location：Hong Kong, Shenzhen, China

Sapiens ultra-compact and high-performance Sirius-E3 are deployed along key shipping channels and port areas to efficiently monitor for compliance with national fuel sulfur content regulation by vessels operating in the region. This innovative UAV-based deployment provides real-time data on crucial air pollutants like SOx, NOx, and CO2 empowering authorities to quickly identify non-compliant ships while they are underway to take immediate enforcement action without steeping onto the actual ships.

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Investigating the Causes of Excessive Ozone Level in Tibet

Sector：Harsh Environments

Location：Tibet, China

In recent years, Tibet faced a significant challenge from excessive ozone pollution. After calibrating the local national monitoring stations, the Shanghai Environmental Monitoring Center collaborated with the Tibet Environmental Monitoring Station to deploy a network of advanced micro air monitoring stations MAS Odour Plus from Sapiens. These stations provided comprehensive real-time data on a range of key pollutants, including PM2.5 PM10, SO2, NO NO2, O3, and TVOC. By analyzing the monitoring data, the team was able to establish a preliminary understanding of the connections between local oz

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Tethered Balloon Deployment of Sapiens Air Sensors for Planetary Boundary Layer Research at High Altitude

Sector：Ambient and community

Location：Shanghai, China

New particle formation (NPF) is a significant source of atmospheric aerosols, playing a crucial role in influencing global climate. The nucleation and subsequent growth processes involved in NPF have sparked considerable research interest. To advance the study of NPF in China, researchers employed the high-performance MAS series to measure air quality at elevations exceeding 1000 meters. This investigation focused on the vertical profiles of key pollutants and their formation mechanisms, providing valuable insights into atmospheric dynamics.

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Mobile Sensor Network in Shanghai for City Roadway Air Pollution Management

Sector：Traffic and Marine Emission Monitoring

Location：Shanghai, China

Sapiens MASEN products help clients and collaborative parties gain a better understanding of roadway network segmentation and sensor data assignment. In this project, Sapiens MASEN series air monitoring sensors are installed on about 20 buses and 100 taxis in Shanghai, effectively covering 80% of the major urban transport routes. These sensors uploaded more than 20 million real-time monitoring data monthly, generating a map of urban road dust clouds.

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Ultra Air Monitoring Network for Dense Population

Sector：Ambient and community

Location：Macau, China

?To address Macau's complex and highly variable air pollution patterns, seven strategically positioned Sapiens MAS-AF300 systems form a comprehensive monitoring network across the region. This deployment empowers Macau Meteorological and Geophysical Bureau of Macau Government with hyperlocal, real-time data – transforming the challenge of heterogeneous pollution distribution into actionable insights for evidence-based decision-making.

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Collaborative Odour Surveillance at the Hong Kong Shenzhen Border Interface

Sector：VOCs & Odour Monitoring and Sampling

Location：Hong Kong, Shenzhen, China

This project represents a unique cross-border collaboration between the Hong Kong and Shenzhen government environmental authorities. As part of this project, a comprehensive monitoring network was established along the border of the large municipal landfill area. The network included 14 strategically placed air sensors NAS and automated Odour Sampler.

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Shanghai Import Exhibition Air Management

Sector：Sports Events and Emergency Monitoring

Location：Shanghai, China

The China International Import Expo, organized by the Ministry of Commerce and the Shanghai Municipal People's Government, is the world's first national-level exhibition dedicated solely to imports. During this prestigious event, Sapiens collaborated with the Shanghai Environmental Monitoring Center to establish a comprehensive air quality monitoring network utilizing multiple Mini Air Station (MAS). This initiative ensured effective air quality control and management throughout the expo.

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Helicopter Sensor for Pollution Source Tracking

Sector：Drone-Based Monitoring and Sampling

Location：Hong Kong

Understanding the vertical profile of air pollutants is crucial for comprehending the formation and transport of air pollution. Helicopters serve as an effective tool for in-situ measurements of air quality. To enhance regional studies on pollution transport and formation mechanisms in the Greater Bay Area (GBA), Sapiens has collaborated in a 3D Air Quality Monitoring Program organized by the Hong Kong Environmental Protection Department (HKEPD), the Government Flying Service (GFS), the GBA Environmental Laboratory and the Hong Kong University of Science and Technology (HKUST). This initiat

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