NAS AF300

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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 (PM₂.₅, PM₁₀), nitrogen dioxide (NO₂), ozone (O₃), carbon monoxide (CO), sulfur dioxide (SO₂) with near reference data quality under all weather conditions. Other important air pollutants including nitrogen monoxides (NO) and carbon dioxide (CO₂) are optional.

Light weight and compact design for versatile installation options of tripod, wall mount and crossarm

PCT patented Pair Differential Filter (PDF) technology for gas sensors to auto track the virtual baseline of sensor signals to offer unmatched performance at ppb level measurements

Continuous and simultaneous measurements of particulate matters and up to 6 gases

Product Detail

Light weight and compact long-term ambient criteria air pollutants monitoring

The intended applications are high performance target community air monitoring and smart city applications for lamppost and grid based air monitoring to support the air policy and control measures implementation.

Certification

As an ISO 9001 and ISO 14001 certified company, we are committed to technological excellence and sustainability.

PM₁ PM_2.5 PM_1O NO₂ NO CO CO₂ O₃ SO₂ Relative Humidity Temperature Pressure Wind Direction Wind Speed

Features and advantages

Waterproof Design

IP65 waterproof design, suitable for various outdoor environments, modular for easy maintenance.

Dynamic Baseline

Proprietary technology, real-time baseline tracking, eliminates temperature and humidity effects.

Humidity Correction

Built-in high-performance sensors ensure accurate particle concentration measurements.

Auto-Zero Function

Optional auto-zero module for automatic correction of sensor drift errors.

Data Transmission

4G network data transmission, cloud platform supports real-time monitoring and remote calibration.

Cloud Analysis

Cloud storage and intelligent platform for easy access and in-depth data analysis.

Remote calibration

The Sapiens SEIN platform offers a calibration function, which is a powerful and unique tool for quality control and assurance

Solar Power Supply

Optional solar panel, ideal for remote outdoor environments.

Specifications

Dimension

20cm ×30cm ×15 cm (H x W x D)

Weight

4kg

Environmental Operating Range

Temperature: -10 ~ 40°C; Humidity: 0 ~ 99 %; Pressure: 80kPa ~ 120kPa

Installation options

Tripod/ Wall mount/ Cross arm

Ingress Protection

IP65 PC case with metal shield for UV protection

Power Input

Standard : 220V AC or 15 ~ 22V External DC Input
Optional: External Smart Battery Packs, Solar Power Panel

Power Consumption

Normal @ 10W, Max @ 15 W

Data Management

Sapiens Environment IoT Network (SEIN) network for remote data browsing, downloading, system condition checking and control, and data management Modbus Enable

Data Transmission

4G Module Transmission and Serial Port Connection for Data Streaming;
RS485/232 communication for Sapiens Console software with data streaming and system configuration

Data Storage

Standard 16G SD card for data storage

Gas sampling

Omnidirectional inlet and active sampling with long lifetime pump ( >1 year)

PM sampling

Fan based sampling

Sampling Rate

1 minute

Averaging Interval

1 minute, 1 hour, 1 day

Quality Control System

Humidity correction for PM measurement with proprietary algorithm Pair Differential Filter technology for temperature and humidity impact correction on gas sensor signals Auto zero functions for SO2, NO, NO2, O3 to correct for sensor drifting over long term operation

Download Spec Sheet

Connectivity

Seamless IoT Integration

Our solutions enable effortless connectivity across diverse devices and platforms, unifying sensors, systems, and applications into a cohesive smart ecosystem SEIN platform. With cross-protocol compatibility and real-time data synchronization, we empower businesses to streamline operations, enhance decision-making, and scale innovations securely—all through a single, intuitive interface.

Power Packs

The NAS AF300 has different power options, as per follows:

Mains Supply
Solar Panel
External Smart Battery
Mains Supply + External Smart Battery

Case Studies

Explore all case

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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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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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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MASEN & NAS: Enabling Targeted Pollution Control

Sector：Industrial Emission Monitoring

Location：Zhejiang, China

The Tianzihu Modern Industrial Park in Zhejiang China, faces challenges with air pollution due to industrial activities. To understand the spatial distribution and diffusion of pollutants, a five-day mobile monitoring campaign was conducted using MASEN-Pro vehicle-mounted sensor. The data revealed the need for a grid-based monitoring system to manage air quality effectively. The 34 units of NAS were also strategically deployed across the park. This combination of mobile monitoring with MASEN and fixed location monitoring with NAS has established a comprehensive monitoring network, ena

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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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Supports Air Quality Monitoring at Hong Kong’s Eco Park

Sector：Industrial Emission Monitoring

Location：Eco Park, Hong Kong

The Eco Park operated by Environmental Protection Department (EPD) of HKSAR Government, is the city's first facility dedicated to the recycling industry. To assist the EPD’s efforts, Sapiens has collaborated to deploy 10 of our compact air monitoring stations MAS-AF300, and wind sensors across the park grounds. These Sapiens solutions provide comprehensive, real-time data for PM2.5, PM10, NO2, O3, and CO on air quality within the park and surrounding areas. This valuable information helps the better understanding of the local environment and develop accurate air quality models for the region.

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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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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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