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Environmental Testing and Monitoring

At Sanwa Technologies, we pride ourselves on being at the forefront of advanced manufacturing solutions.

WXA100-07

Ambient monitoring system for seven meteorological elements

WXA100-07 ambient monitoring system for seven meteorological parameters mainly includes seven parameters, i.e. temperature, humidity, air pressure, rainfall, wind velocity, wind direction and radiation. Wind velocity and wind direction are monitored by the ultrasound method. The monitoring principle is sensor method.

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  • All weather work without being affected by rainstorm, ice, snow and frost;

  • High measurement accuracy and stable performance;

  • Compact and aesthetic structure, easy to install and disassemble;

  • Full-metal appearance and strong resistances against interference, corrosion and electromagnetic radiation;

  • RS232/RS485 interfaces for user's choice;

  • Maintenance-free and no field calibration.

LHGM-2012 dynamic calibrator

  • Automatic calibration: automatically calibrate the flow controller to reduce errors of flow controllers and improve the accuracy of gas concentration;

  • Multi-channel standard gas interface: simplified pipeline, convenient and fast operation;

  • Real-time cleaning function: after gas distribution, clean the pipeline and controller with dilute gas (N,) to prolong its service life;

  • Humanized interface: touch screen for easy, fast and intuitive operation.

LFAMS-2012

Water soluble ion monitor

LFAMS-2010 water soluble ion monitor separates gas and PM by utilizing their difference in diffusion coefficient, then absorbs and removes the acid and alkaline gases. The sample gas is mixed with saturate steam in the mixing pool. PM acts as condensation nodules to absorb the cooled water vapor. The cooled water vapor forms water drops and then is collected to achieve the goal of liquefaction and absorption of PM. After absorption and liquefaction, the sample is measured and fed to the rear online ion chromatograph and heavy metal analyzer for detection and then calculating the concentration of pollutants in the air.

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  • Simultaneously monitor anions and cations;

  • Flexible configuration of sampling particle size;

  • Short sample preparation and testing cycle: 1h;

  • High temporal resolution;

  • Absorption rate ≥ 95%.

LHZA-2012 zero gas generator

  • Simple daily maintenance;

  • Stable flow output and dry and clean zero gas;

  • Catalytic converter temperature: up to 550 °C;

  • Equipped with air storage tank to ensure stable zero gas output flow;

  • Renewable dryer service life ≥ 5 years, equipped with pressure controller, over-pressure and overheat protection devices, with long service life.

PM component monitoring module

The PM component monitoring module mainly consists of three instruments, i.e. water soluble ion component, carbon component and inorganic element instruments. It is used to analyze PM.s source and component characteristics, pollution causes and rules, and pollutant source components in heavy pollution weather, so as to improve the refined PM management, and provide scientific basis for precise prevention and control. The instruments have been used in 11 provincial-level administrative regions in China, providing effective monitoring data and control suggestions for air pollution prevention and control in the "13th Five-Year Plan" period.

LFOEC-2018

OC/EC monitor

LFOEC-2018 uses thermophotometry for analysis. It utilizes differences in thermal properties of OC and EC to separate them in different carrier gases and at different temperatures. It corrects the error caused by OC carbonization in thermal decomposition process by an optical method based on changes in laser intensity transmitted through or reflected by the filter membrane so as to realize accurate measurement of OC and EC concentration in PM in ambient air.

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  • Simultaneous measurement by TOT and TOR to meet different standard requirements;

  • Unique structural design and convenient installation and replacement of filter membranes;

  • Simple and detachable optical components to realize convenient maintenance and cleaning;

  • Daily automatic zero point verification, reliable data, customized heating program and flexible operation.
     

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LFXRF-2019

Online PM inorganic element monitor

LFXRF-2019 online PM inorganic element monitor is used for high temporal resolution and multi-metal monitoring of ambient air. It can realize real-time online monitoring, accurately analyze the concentration of inorganic element pollutants in the air, and also qualitatively and quantitatively analyze over 30 kinds of light and heavy metals. Its data can be applied to pollutant source analysis, boundary monitoring, identification of pollution spatial distribution characteristics, and monitoring of unexpected pollution events.

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  • Equipped with a helium replacement system, with high detection sensitivity and high applicability for light element detection;

  • Double-layer lead plate enclosure without X-ray leakage;

  • Automatic breakage of X-ray tube when opening the door to ensure high safety;

  • Switchable 6 filters to adapt to the diversified detection elements;

  • Optimal consumables management and timely reminder of replacement of consumables.

LFGGC-2013

Continuous monitoring system of VOC gas chromatography in ambient airThe system is used for research of real-time monitoring, generation mechanism, source analysis, etc. of photochemical pollution to form a decision support system that integrates early warning and prediction, monitoring analysis, effect assessment and pollution prevention and control together. It provides effective support for photochemical pollution control. The complete solution meets the requirements of the Technical Guidelines for Analysis of O, Pollutant Source in Ambient Air. It is designed for NMHC, PAMs (117 items), OVOCs and halogenated hydrocarbon in ambient air based on gas chromatography detection technology. It can achieve flexible multi-grade configuration as needed by the customers, and provide basic data for O3, traceability and VOCs pollution representation.
 

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  • Equipped with a helium replacement system, with high detection sensitivity and high applicability for light element detection;

  • Double-layer lead plate enclosure without X-ray leakage;

  • Automatic breakage of X-ray tube when opening the door to ensure high safety;

  • Switchable 6 filters to adapt to the diversified detection elements;

  • Optimal consumables management and timely reminder of replacement of consumables.

LFGGC-2013

Online gas chromatograph (PAMs)

By gas chromatography technology and by setting the sampling time and flow according to the actual situation, the Mass Flow Controller (MFC) controls VOCs to enter the enrichment tube. After enrichment, the six-way valve is switched, and the enrichment tube is started for temperature rise for rapid thermal desorption of the sample. The sample is sent into the chromatographic column through carrier gas, and the temperature program of the chromatographic column is started. VOCs are separated in the chromatographic column, and finally enter FID/ECD detector. The qualitative analysis is conducted according to retention time, and quantitative analysis is conducted according to peak area.

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  • Independently developed, with 7 core patent technologies;

  • Automatic real-time sampling, low-temperature enrichment, high-temperature analysis, and high data timeliness;

  • High data traceability and accuracy;

  • Real-time monitoring, storage and reliable data.

  • Complete logs and long-term stable instrument tracking;

  • Precise and controllable MFC to realize flexible enrichment time and sampling volume.

LFGCMS-100 GC-MS

Continuous monitoring system for VOCs in ambient air

LFGCMS-100 GC-MS continuous monitoring system for VOCs in ambient air can monitor 116 factors online, complies with HJ1010-2018 and meets the requirements in Monitoring Plan for VOCs in Ambient Air of Cities at and above the Prefecture Level in 2019. It is applied in separation and identification of complex components. It has GC high resolution and MS high sensitivity.

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  • GC-MS high sensitivity;

  • Equipped with a differential turbomolecular pump vacuum system with high analysis efficiency;

  • Easy to maintain and clean, suitable for long-term stable use of enterprises, and cost effective;

  • Simple, convenient and fast image-text operating software in Chinese and English for easy operation.

LFGGC-2013

Continuous monitoring system for NMHC in ambient air

LFGGC-2013 continuous monitoring system for NMHC in ambient air adopts advanced GC-FID to measure VOCs in gas. It can continuously monitor methane/NMHC by direct measurement method.

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  • Independently developed, with core technologies and many patents.

  • Automatic enrichment sampling, sampling time adjustable, and LOD better than the difference method.

  • The packing enrichment tubetelectronic refrigeration enrichment method are used to enrich hydrocarbons, ensuring a high enrichment rate.

  • Traceability of chromatograms of all historical monitoring data to ensure data validity.

  • Real-time monitoring, display and saving of instrument status information to ensure data reliability.

  • Detailed recording and saving of instrument logs to track the long-term stability of the instrument.

  • MFC accurately controls the sampling flow with flexible enrichment time and sampling volume.

  • Pre-injection anti-purge design to eliminate injection interference.

  • The carrier gas circuit has the automatic leakage detection function to ensure chromatographic performance.

  • If shutdown, the air source is automatically cut off to ensure safe operation, and then, the instrument is automatically ignited.

LFGUV-2018

Online formaldehyde analyzer

Formaldehyde is one of main pollutants in urban air, and is also an important precursor of organic acids, O, and peroxyacetyl nitrate (PAN) in air. Measurement of its concentration in the air is of great significance to the environment. LFGUV-2018 online formaldehyde analyzer uses acetylacetone fluorescence method and captures formaldehyde gas in air with absorption liquid. The formaldehyde absorption liquid reacts with acetylacetone solution at high temperature. This analyzer detects the concentration of reaction products by fluorescence method and then calculates the formaldehyde concentration in air.

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  • Easy daily maintenance, only consumables need replacement;

  • Automatic zero calibration and regular automatic calibration and curve calibration;

  • Automatic online monitoring;

  • Independently designed cooling pool and high-temperature pool meet the requirements of simultaneous heating and cooling.

LFAA-2012 CO

Greenhouse gas monitoring module

LFAA-2012 CO, analyzer cyclically and quickly collects dark background signals, sample gas spectrum signals and reference signals in the independently designed long-path gas absorption pool by NDIR through the periodic and fast rotation of filtering wheels to get CO, absorption signal value without the impact of background noise and other interfering gases. The concentration is obtained according to lambert-beer law. It is suitable for monitoring of emission sources, monitoring of fugitive emissions in parks and overall monitoring of industrial parks.

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  • Easy daily maintenance, only consumables need replacement;

  • Automatic online quality control;

  • Stable infrared light source, long service life and small impact of shock and vibration;

  • High data identification;

  • Historical records for user analysis;

  • Sampling inlet dual-channel infrared detector plan with more stable results and free of frequent calibration;

  • Rich interfaces.

  • Easy daily maintenance, only consumables need replacement;

  • Automatic zero calibration and regular automatic calibration and curve calibration;

  • Automatic online monitoring;

  • Independently designed cooling pool and high-temperature pool meet the requirements of simultaneous heating and cooling.

LFFTIR-2020

Ambient air multi-parameter analyzer

LFFTIR-2020 ambient air multi-parameter analyzer monitors the main greenhouse gases in air by Fourier transform infrared spectroscopy, including CO,, CH, N,O, HFCs, PFCs, SF, and NF. It is suitable for monitoring of emission sources, construction of urban component stations and super monitoring stations, monitoring of fugitive emissions in park, overall monitoring of industrial park, cruise inspection, etc.

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  • High spectral resolution applicable to analysis of many mixed gases;

  • High SNR and low LOD;

  • Many components in database suitable for analyzing different gases in many situations;

  • Good seismic resistance, suitable for various modern moving platforms;

  • Fast response speed, up to second level.

LFLDR-2019 PM

Laser radar

LFLDR-2019 PM laser radar analyzes the extinction and polarization characteristics of air particles with PM monitoring laser radar so as to distinguish the PM spatiotemporal distribution and realize the recognition of dust, clouds and local pollutants. It realizes qualitative identification of non-spherical particles (dust and sand storm) and spherical particles (secondary PM). It can distinguish pollutant sources and distribution by different placement modes. If it is vertically placed, it can judge whether there is any external pollution input. If it is horizontally placed, it can accurately locate the specific location of pollutant emission sources in order to achieve the goal of accurately tracing pollutant emission sources in an area.

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  • Dual-wavelength four-channel design, detectable particle size up to nm and identification of PM types and sources;

  • Millijoule laser light source design, high energy and 10km detectable height in heavy pollution weather.

  • Detect vertical distribution and spatiotemporal evolution characteristics of air particles;

  • Detect vertical distribution and spatiotemporal evolution characteristics of clouds;

  • Detect structure and spatiotemporal evolution characteristics of atmospheric boundary layer;

  • Detect PM polarization optical characteristics and realize qualitative identification of non-spherical and spherical particles.

Micro-grid monitoring equipment

Micro-grid monitoring equipment mainly consists of two monitoring systems, namely LFAQMS-2015 (M) minitype ambient air monitoring system and LHFCL-2010 online dust monitoring system.

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  • Support data APP;

  • Compact and easy installation;

  • Quick system response and less maintenance;

  • Convenient extension of monitoring parameters;

  • Monitoring module extensible;

  • Automatic zero calibration with high efficiency and accuracy;

  • Equipped with temperature control system to protect the instrument.

Integrated product system

Lihe Technology (Hunan) Co., Ltd. has a complete series of product systems, involving air conventional pollutants, meteorology, pollutant components, laser radar, flue gas pollutant sources, greenhouse gases, quality control and data analysis, etc. More than 10 installation methods are applicable to these products, such as station building, container, cabinet, outdoor room, vehicle, minitype station, UAV, box scanning, portable way, high altitude, website platform and mobile APP. These product systems have been applied to environmental monitoring in many provinces and municipalities in China. The Company provides a series of quality products and services for many research institutes, government management authorities, environmental monitoring institutions, industrial parks, conferences, and scientific research activities.

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  • Conventional six parameters in national standard method;

  • PM components include online water soluble ions, carbon components and XRF inorganic elements;

  • Organic matters include NMHC, PAMs, and OVOCs.

  • PM components and organic matter components;

  • Convenient lifting and installation, and quick deployment for monitoring;

  • Application as fixed component station with long design service life and low construction costs.

Fixed Pollution Source Flue Gas Continuous Emission Monitoring System

The LFGMS-2010 Fixed Pollution Source Flue Gas Continuous Emissions Monitoring System achieves continuous monitoring of particulate matter and gaseous pollutant concentrations, as well as total emission quantities from exhaust emissions of fixed pollution sources. Simultaneously, it transmits the monitored data and information to relevant authorities.
This system is applicable to industries such as steel, cement, power plants, spraying, printing, petrochemicals, furniture manufacturing, rubber manufacturing, and pharmaceuticals. It realizes real-time monitoring of exhaust gas temperature, pressure, flow rate, dust, humidity, and gaseous pollutants. It provides real-time data for enterprises to adjust relevant processes, achieving energy savings and emission reduction. At the same time, it offers reliable monitoring data for regulatory authorities overseeing emission-producing enterprises.
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  • Flexible Configuration: Equipped with automatic calibration and range switching functions, meeting the demands of various monitoring scenarios;

  • Modular Design: The internal components of the system are modular, ensuring simple maintenance and low failure rates;

  • Intuitive Display: Users can switch to view the operational status and data curves, providing a concise and intuitive interface;

  • Data Quality Control: Clear data labeling allows for the quick identification of faulty points;

  • Flexible Control: Compatible with a remote monitoring and management platform, enabling remote control;

  • System Alarms: Real-time system status is monitored through key parameters, ensuring timely alarms in case of malfunctions.

LFGMS-2010

Fixed Pollution Source CEMS Online Monitoring System

The LFGMS-2010 Fixed Pollution Source CEMS Online Monitoring System achieves continuous monitoring of particulate matter concentration and exhaust pollutant concentration from atmospheric fixed pollution sources. It also continuously monitors the total emission quantity. Simultaneously, it transmits the monitored data and information to relevant environmental protection authorities. It is applicable to the monitoring of emissions, temperature, pressure, flow rate, dust, humidity, and other indicators during the production processes in industries such as spraying, printing, petrochemicals, furniture manufacturing, rubber manufacturing, and pharmaceuticals.

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  • Capable of achieving on-site automation, process standardization, and continuous monitoring;

  • Adopts an integrated design with strong expansibility of monitoring parameters, fully meeting national standards;

  • Equipped with a comprehensive quality control system, including key process log recording, automatic fault feedback, standard sample automatic verification, ensuring the accuracy and reliability of monitoring results.

LFOEMS-2013

Fixed Pollution Source VOCs Online Monitoring System

The LFOEMS-2013 Fixed Pollution Source VOCs Online Monitoring System consists of three subsystems: Volatile Organic Compounds (VOCs) monitoring, flue gas parameters monitoring (including flow rate, pressure, temperature, etc.), and data collection and processing. Gas pollutant monitoring utilizes advanced gas chromatography technology with GC-FID detection principles. Qualitative analysis is conducted based on retention time to detect various gaseous organic compounds, including methane (CH4)/non-methane total hydrocarbons (NMHC), benzene series, etc. Simultaneously, the system monitors various related parameters such as emission outlet flow rate, pressure, temperature, oxygen content, and calculates the emission rate and total emission of fixed source pollutants. It is applicable to the petrochemical industry, printing and packaging, coating and ink manufacturing, automotive manufacturing and maintenance, electronics industry, pharmaceutical manufacturing, rubber product manufacturing, plastic product manufacturing, black metal smelting, furniture manufacturing, and more.

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  • Analysis sample range: THC/NMHC/BTEX;

  • Injection method: Low-temperature enrichment + hot desorption tube injection;

  • Sample volume control: Quantitative loop or mass flow control;

  • Column type: Packed column;

  • Column heating method: Rapid on-column heating;

  • Column temperature control: Constant temperature control, temperature fluctuation ≤ 0.1°C

PM pollutant source analysis technology

This technology is made based on research with independently researched dynamic analysis equipment for water soluble ions, inorganic elements and carbon components. It mainly includes comprehensive analysis of regional PM pollution, refined pollution analysis of urban PM, and dynamic pollution analysis of pollution processes. The technical processes include automatic monitoring, online data analysis, model analysis and comprehensive verification of results to fully ensure the reliability, credibility and availability of analysis results. Compared with classical source analysis methods, this technology significantly improves analysis resolution, timeliness, accuracy and automation, and provides more effective support for management. This technology meets the requirements of technical codes such as Technical Guidelines for PM Source Analysis. It has participated in guaranteeing air quality in many important activities such as BRICS in Xiamen, National Games in Xian, Conference of the Parties to the United Nations Convention on Biological Diversity in Kunming and Carbon Peak and Carbon Neutrality Summit of Urban Agglomeration in the Middle Reaches of the Yangtze River and International Green Development Expo in Changsha. It supports PM source analysis of many research institutes in Hunan Province. Besides, it strongly supports urban PM source analysis in "Hunan Component Network". The complete equipment has been applied in pollution prevention and control in 18 cities in 14 provincial level administrative regions in China.

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  • Analysis sample range: THC/NMHC/BTEX;

  • Injection method: Low-temperature enrichment + hot desorption tube injection;

  • Sample volume control: Quantitative loop or mass flow control;

  • Column type: Packed column;

  • Column heating method: Rapid on-column heating;

  • Column temperature control: Constant temperature control, temperature fluctuation ≤ 0.1°C

O3 pollutant source analysis technology

This technology is made based on research with independently researched refined analysis equipment for PAMs (57 items), GC-MS (117 items), NMHC and aldehydes and ketones. It mainly includes comprehensive analysis of urban 0, pollution, refined analysis of regional photochemical components and dynamic analysis of pollution process. The technical processes include automatic monitoring, real-time analysis, model simulation, comprehensive analysis and evaluation optimization to effectively ensure that the analysis conclusions are scientific, accurate, effective and practical. Compared with traditional O, source analysis means, this technology significantly improves the supports to management. This technology meets the requirements of technical codes such as Technical Guidelines for Analysis of O, Pollutant Source in Ambient Air (Trial) and 2020 VOCs Control Plan (Exposure Draft). It supports O, pollution prevention and control in many cities, such as Changsha, Zhuzhou, Yiyang and Putian. It also supports O, source analysis in many research institutes in Hunan Province. The complete equipment has played a very important role in O, pollution prevention and control in 12 cities in 10 provincial level administrative regions in China.

Pollution tracing and refined control technology

The pollution tracing and refined control technology mainly includes GIS visualization method, pollutant wind rose method, characteristic component tracing method, WRF CMAQ simulation method, meteorological change analysis and cause analysis method, backward trajectory analysis method, characteristic radar tracing method, triangular relationship analysis method, pollutant correlation analysis method, and air self-purification capacity evaluation method, etc. This technology meets the requirements in Analysis Technology for PM and 03 Pollutant Source in Ambient Air (Trial). It can effectively avoid the "one size fits all" approach during environmental law enforcement, and provides economic and efficient control measures for environmental management authorities.

Dynamic cause analysis and emergency control technology for heavy air pollution

An online air quality analysis platform based on image - table information has been built for heavy pollution cause analysis technology. This platform covers 14 provincial level administrative regions, including Beijing, Hunan and Fujian. This platform has more than 10 modules, including meteorological causes, component analysis, early warning and forecasting and report statistics, to automatically sort and update massive big data. In the field of cavironmental protection, it can be used by environmental management authorities and researchers owing to its rapid mapping function. It effectively supports local environmental management authorities in targeted air pollution prevention and control, and has achieved good results. An emergency emission reduction technology system for heavy pollution weather has been established for emergency control in heavy pollution weather. The company optimizes the classification standard for heavy pollution weather warning and establishes the technical methods for preparing emergency emission reduction lists. The technology systematically analyzes the emission characteristics and emission reduction potential of many key industries, establishes a database for emergency emission reduction measures, and proposes a differentiated emergency emission reduction assessment system for key industries. Since 2017, the company has continuously supported the revision of the emergency plans for heavy pollution weather by many management authorities in Hunan Province, assisted many environmental management authorities in air heavy pollution emergency dispatching meetings, and developed "special assistance" in five cities. Therefore, the company has been unanimously praised by many provincial and municipal environmental management authorities.

Standard monitoring station O&M system

The company actively takes part in air quality control O&M in national stations and local stations. Since 2017, the company has established a professional air O&M team. From 2020-2023, the licensed O&M team has become a team with more than 350 people. At present, the company has developed a flexible and convenient quality control O&M platform and mobile app to realize data review, remote O&M and report statistics. In accordance with the Measures for Quality Management for Automatic Monitoring of Ambient Air in National Environmental Monitoring Network (Trial), the team has actively participated in the construction of standard air O&M management in many regions, and jointly prepared a series of manuals such as Manual for O&M of Automatic Monitoring System for Ambient Air Components in Changsha.
In recent two years, the company has participated in all the service work, such as O&M of automatic air monitoring stations at Putian city level or below belonging Putian environmental monitoring station and O&M of automatic ambient air monitoring station in Hunan Province. It continues to provide a "LIHERO force" for ambient air monitoring.

Sapiens MAS-AF310

High performance next generation outdoor air quality monitoring with validated data performance and successful international application cases for research, government, community and industrial users. 

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 (PM2.5, PM,0), nitrogen dioxide (NOz), ozone (Os), carbon monoxide (CO), sulfur dioxide (SO2) with near reference data quality under all weather conditions, and total volatile organic compounds (TVOC) at high accuracy. Other important air pollutants including nitrogen monoxides (NO), and carbon dioxide (COz) are optional. MAS-AF310 is equipped with the patented Pair Differential Filter (PDF) sensing technology using paired filter for continuous tracking of virtual baseline for the gas sensors signals. Autozero functions are also enabled to track the long-term drift issues for both gas and PM measurements. Data transmission to designated Sapiens cloud server or user designated server through API and direct TCP links are optional. The intended applications are complementary air quality monitoring with high data performance target needs and near reference data quality requirement for the government agency, communities, air quality researchers and industrial sectors.

Sapiens NAS-AF300

NAS-AF300 is a light weight and compact air monitoring station with quadric PM sensors for elongated real-time PM measurements and up to 4 or 6 gas pollutants measurements using an active pumping approach with auto-zero function for drift correction. The product can measure criteria air pollutants including particulate matters (PM2.5, PM,o), nitrogen dioxide (NOz), ozone (O3), carbon monoxide (CO), sulfur dioxide (SOz) with near reference data quality under all weather conditions. Other important air pollutants including nitrogen monoxides (NO), Hydrogen sulfide(HS), Ammonia(NH3) total volatile organic compounds (TVOC) and carbon dioxide (COz) are optional. NAS-AF300 is equipped with the newest Pair Differential Filter sensing technology for continuous tracking of virtual baseline for the gas sensors signals. Autozero functions are also enabled to track the long-term drift issues for both gas and PM measurements. Data transmission to designated Sapiens cloud server or user designated server through API and direct TCP links are optional. The intended applications are high performance target indoor and community air monitoring and smart city applications for lamppost and grid based air monitoring to support the air policy and control measures implementation.

Sapiens MASEN Pro

MASEN-Pro is the high-end flagship model of the MASEN (Mobile Air SEnsor Network) series products with integrated automatic data quality control capability, which is specially designed for high-end mobile monitoring applications that need reliable quality data. MASEN-Pro mounted in vehicle is suitable for real-time monitoring of particulate matter and a variety of air pollutants under various road environmental conditions. Monitoring data can transmit to designated Sapiens cloud server or user designated server through API and direct TCP links.

MASEN-Pro can simultaneously monitor up to 6 to 8 gases, and can be customized according to user's requirements. The main monitoring gases include nitrogen dioxide (NOz), ozone (03), carbon monoxide (CO), sulfur dioxide (SO2) with near reference data quality under all weather conditions. Other important air pollutants including nitrogen monoxides (NO), total volatile organic compounds (TVOC) and carbon dioxide (CO2) are optional. MASEN-Pro is equipped with the patented Pair Differential Filter (PDF) sensing technology using paired filter for continuous tracking of virtual baseline for the gas sensors signals. Autozero functions are also enabled to track the long-term drift issues for both gas and PM measurements.

Sapiens Sirius E3

The UAV-based monitoring platform enables a plume tracking model for individual vessel pollution emissions and fuel sulfur content, utilizing the UAV's small mount to load high-precision, high-response gaseous pollutant sensors (e.g., sulfur dioxide, carbon dioxide, etc.), and using an aspirated sampling air path to improve system response speed, enabling high-resolution and high-quality sampling under high-speed motion conditions. Through the multi-rotor UAV's infrared camera, cruise type infrared scanning of incoming and outgoing vessels is performed to confirm the fixed target vessel and identify the position of the vessel's smokestack and the direction of the smoke plume. By controlling the multi-rotor drone through the smoke plume, staying in the smoke plume at multiple points, through the pumping gas sensor module hanging on the multi-rotor drone, to achieve full detection of the smoke plume, and the detection data will be transmitted back to the data processing center in real time to complete the realtime calculation and feedback of the ship's emission factors, to determine whether the target ship's emissions exceed the standard. The whole set of monitoring platform avoids the interference of exhaust emission brought by the platform itself, and can realize hover detection, remote detection and maximum low altitude flight to complete the monitoring task of target ships in different operating environments and obtain the pollutant emission concentration of each ship in different environments. Then, based on the principle of fuel carbon balance, the emission factors are obtained by using the conversion relationship between elemental carbon and carbon dioxide in fuel and the difference between carbon dioxide and each pollutant in the exhaust gas mass and environmental background concentration obtained by the mobile platform in and out of the target exhaust gas.

Automatic Intelligent Sampler

The Automatic Intelligent Sampler is designed to seamlessly integrate with the MAS/ NAS series monitoring systems. It supports both threshold-triggered and continuous automatic atmospheric sampling and remote-controlled independent sampling. Tailorable to specific application needs, the sampler can accommodate various quantities, types, and volumes of sampling containers. It features independent multichannel control, enabling diverse sampling modes including threshold, timed, and cyclic sampling. This versatile device is ideal for high-threshold automatic sampling of ozone and volatile organic compounds (VOCs), catering to advanced environmental research and management needs, such as source identification and analysis.

Sapiens Sirius-A3

The drone-based air monitoring sensors high-precision and high-response gaseous pollutant monitoring and adopt an aspirated sampling air path to improve system response speed up to 1Hz. The monitoring system with independent air path eliminates the wake interference caused by rotors, achieving multiple monitoring tasks such as hover detection, navigation detection and vertical detection under different operating environments.

The Sirius-A3 can measure six to eight gaseous pollutants simultaneously. The monitoring sensors can be customized based on user project requirements, and the subsequent addition, removal or replacement are available. The main monitoring gases are the basic particulate matter and gaseous pollutants included nitrogen dioxide (NO2), ozone (03) and carbon oxide (CO), and the odor pollutants included hydrogen sulfide (HS) and total volatile organic compounds (TVOC). Other gases such as nitrogen oxide (NO) or carbon dioxide (CO2) are customizable.

PEK Ultra-Compact Personal Exposure Kit

  • Portable design, as easy to carry as a smartphone for both mobile and fixed mode operations;

  • Data transmission solutions via 4G, WiFi, and Bluetooth

  • Real-time mapping and graphing of pollution measurements through the Sapiens Sensor App;

  • Built-in rechargeable lithium battery with ultra-low power consumption and long battery life;

  • PM counter and size bin number concentration output for multichannel particle measurements;

  • Sapiens' PCT patented Paired Differential Filter (PDF) technology for auto-tracking the virtual baseline of gas sensor signals, ensuring superior gas data accuracy at ppb levels;

  • Up to 5 gases simultaneous measurements of NO, NO2, O3, CO (PDF enabled) and TVOC;

  • Internal fan for superior fast response to adapt to change of microenvironments;

  • Integrated CO2 sensor for indoor ventilation assessment (PEK-PRO and PEK-Standard models);

  • Light, noise and pressure sensors for microenvironment characterization.

SAPIENS EMS

The EMS is a compact environmental monitor providing essential data on air quality and weather. It is invaluable for environmental consultants, urban planners, and health professionals to make informed decisions and ensure safety and compliance.

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  • Highly integrated dust, noise, meteorological and other environmental factor 

  • 24/7 outdoor long-term monitoring

  • Flexible installation method for different application scenarios

  • Integrated data platform for data transmission, and real-time online display

  • Equipped with email alert for pollutants' exceedance

  • Build-in battery to support 6-8 hours of measurement

Sapiens Sensor Tube DF-4

Sapiens Air Monitoring Sensor Tube (DF-4) is a highly compact outdoor air quality sensor system designed to monitor air pollutants in real-time. Additional environmental factors of Temp, Relative humidity are also included. Sapiens Sensor Tube DF-4 is a long-term outdoor air quality monitoring with integrated autonomous data quality control capabilities. The product can measure criteria air pollutants including nitrogen monoxides (NO), nitrogen dioxide (NO,), ozone (O,), carbon monoxide (CO) with near reference data quality under all weather conditions. Sapiens Sensor Tube DF-4 is equipped with the Pair Differential Filter

(PDF) sensing technology using paired filter for continuous tracking of virtual baseline for the gas sensors signals. With effective reduction of the impact of environmental temperature and humidity, the air pollution measurement data quality has been greatly improved by this technology. The DF-4 is suitable for the monitoring of atmospheric pollutants under versatile micro-environments with dynamic changing humidity and temperature transients. Data transmission to designated Sapiens cloud server or user designated server through API and direct TCP links are optional. The intended applications are complementary air quality monitoring with high data performance target needs and near reference data quality requirement for the government agency, communities, research projects needs.

Establishment

Sanwa Technologies was founded in 1991 in the light of rapid technology industry development.  Sanwa Technologies has been providing process solutions, advanced vision and environmental testing solutions to the industries covering microelectronics, critical component manufacturing and advance manufacturing industries.

LFAQMS-2012

Ambient air monitoring system for >6 conventional parameters

LFAQMS-2012 ambient air conventional pollutant monitoring system mainly consists of LFAA-2012 gas pollutant monitoring instrument for four parameters and LHPM-2012 PM pollutant monitoring instrument for two parameters. The system fully meets the monitoring requirements for conventional pollutants in air stations at national, provincial, municipal, township and park level. At present, it has been applied in many regions, such as Central China, South China, and Southwest China, providing real-time and effective monitoring data for environmental protection authorities at all levels to do air pollution prevention and control.

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  • Humanized man-machine interaction and easy operation;

  • Simple O&M; only consumables need replacement;

  • Automatic online quality control;

  • Data identification for data traceability;

  • TCP/IP communication mode for remote "face-to-face" instrument calibration and maintenance;

  • Complete log record for data traceability and fault recovery.

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