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This section provides an overview for environmental monitoring systems as well as their applications and principles. Also, please take a look at the list of 35 environmental monitoring system manufacturers and their company rankings. Here are the top-ranked environmental monitoring system companies as of August, 2026: 1.Optical Scientific, Inc., 2.GWR Instruments, Inc., 3.Columbia Weather Systems, Inc..
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Categories Related to Environmental Monitoring Systems
From an environmental protection standpoint, various laws, such as the Water Pollution Control Law and the Air Pollution Control Law, impose regulations on factories and business establishments. To comply with these regulations, environmental monitoring systems are used to measure parameters such as humidity, temperature, wind velocity, noise, solar radiation, gases, and alcohol concentration.
Typically, most environmental monitoring systems measure only one ecological parameter. However, multi-environmental monitoring systems can measure temperature, humidity, wind velocity, noise, and other parameters in a single unit. These instruments are essential for maintaining a safe working environment in factories.
Instruments used for environmental monitoring include systems for measuring and analyzing water pollution, equipment for analyzing and measuring air pollution, noise and vibration measurement devices, gas detectors, and other weather observation equipment.
Within the realm of environmental measuring instruments are also detector tubes that assess the concentration of gases in the air affecting human health and alcohol checkers that measure breath alcohol concentration.
Other applications include:
Environmental monitoring systems encompass various equipment designed to measure humidity, temperature, wind velocity, noise, solar radiation, and other parameters in a workplace environment.
Gauss meters also fall under the category of environmental monitoring systems, measuring rare earth magnets, electromagnetic coils, and electromagnets.
In the transportation industry, alcohol checkers are mandatory for preventing drunk driving. These devices assess alcohol concentration by analyzing the breath of individuals.
Environmental monitoring systems are often used outdoors, and most are designed for portability, typically weighing 500 g or less.
In recent years, multi-environmental monitoring systems have been developed, capable of performing multiple measurements with a single unit, reducing the burden on the operator.
Many of these systems are waterproof and suitable for outdoor measurements in various weather conditions.
Some models come equipped with additional features such as 24-hour continuous monitoring and alarms that alert users when specific temperature or humidity thresholds are reached.
Particularly, in times of extreme heat, heatstroke prevention products with alarms for preset temperature and humidity levels are valuable in nursing care facilities, schools, construction sites, and other locations.
*Including some distributors, etc.
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Roettele Industries, Inc. is an ISO 9001:2015-certified manufacturer of non-metallic connectors, seals, and diaphragms for the industrial sector established in 1979 and located in Chino, California, USA. The company’s products include washers and gaskets fabricated from thermoplastic elastomers, plastic, and rubber. It also offers seals and diaphragms made from plastic compounds such as polyethylene (PE), polytetrafluoroethylene (PTFE), and polystyrene (PS). The company’s products are commonly used in medical device manufacturing, automotive production, and irrigation operations.
Optical Scientific, Inc. was founded in 1985 and headquartered in Gaithersburg, Maryland. The company is a manufacturer and research, development, and engineering firm that designs and builds optical instruments for measuring precipitation, airflow, turbulence, and visibility. These sensors and systems serve airports, highways, railroads, maritime, and several other markets around the world. The company’s product segments include Atmosphere and Turbulence, Automated Weather Stations, Emissions Flow Monitoring, Process Control, and Weather Sensors.
GWR Instruments, Inc., founded in 1979, is the exclusive manufacturer of GWR iGrav superconducting gravity meters, which are portable and easy to use while providing continuous, high precision, and stable gravity measurements. The meter is utilized in volcano monitoring, oil and gas monitoring, geothermal power plants, silent earthquakes caused by subduction, and global ocean tide models. The company, based in San Diego, California, manufactures remote field station enclosures that house the infrastructure required to run gravity meters, such as air conditioning, lightning protection, and power management.
Columbia Weather Systems, Inc., established in 1998 with headquarters in Hillsboro, Oregon, is a manufacturer of professional weather stations. Their weather stations, including Orion, Pulsar, Magellan, Capricorn, and Weather MicroServer, serve a variety of applications in public safety, military, government, industry, and aviation sectors. These stations measure critical meteorological parameters such as temperature, humidity, wind speed and direction, rainfall, pressure, and solar radiation, allowing for weather monitoring, storm tracking, and report generation.
Particle Measuring Systems, established in 1972 and headquartered in Boulder, Colorado, USA, is a manufacturer and supplier of particle counting and microbial monitoring solutions. The company's comprehensive product lineup includes particle counters, microbial samplers, and cleanroom monitoring systems, crucial for maintaining controlled environments in industries such as pharmaceuticals, electronics, and aerospace. Particle Measuring Systems' products ensure the highest level of quality and compliance in critical processes, contributing to contamination control and product integrity. Besides, the company aims to empower industries with precise monitoring tools for enhanced product safety and process efficiency.
CAS DataLoggers is a manufacturer and distributor of data loggers, data acquisition equipment, temperature monitoring systems, sensors, data loggers and paperless recorders. It was founded in 2001 with it headquarter in USA. The company offer a wide range of data logger products and services, including temperature and humidity monitoring, voltage and current recording, environmental monitoring, and more. The company provides ingenious and credible data acquisition solutions to a wide range of industries including automotive, aerospace, manufacturing, energy, and environmental monitoring.
Mirion Technologies, Inc., established in 2005 and headquartered in Atlanta, Georgia, USA, is a global service provider in radiation safety, science, and medicine. With a rich history dating back to its origins between 1950 and 2004, Mirion's journey has included expansion into healthcare and ongoing advancements in radiation safety technologies. The company’s products and services are aimed at protecting people and the planet from the harmful effects of ionizing radiation. With a diverse portfolio of products and services, Mirion serves across various end markets, from radiation detection and measurement to diagnostic imaging and radiation therapy and more.
Talosys Inc. is an Indian firm that specializes in creating IT and AI-based solutions for various industries. Their products, including smart sensors, smart agriculture, and smart manufacturing systems, are designed to enhance efficiency, reduce waste, and improve safety. Established in 2018, the company has gained a renown in the industry through their advanced solutions and dependable services. Although they have not yet received any awards, they are well-regarded for using advanced technology and emphasize delivering solutions to clients.
Powers of Automation, Inc. established in Bend, Oregon, in 1997 is a Industrial Automation company that delivers calibration and maintenance for industrial control systems. The company provides services including calibration for various industrial control components, maintenance services to keep control systems operating efficiently, Control System Audits and Process Optimization. The company serves industries such as Oil and Gas, Petrochemical and Chemical, Pharmaceuticals and food and Beverage. They also provide services including product preventative maintenance, troubleshooting, and repair.
IMCI Technologies was founded in 1992 and is based in Virginia, USA, providing technological solutions in the form of equipment, to enable remote access to infrastructural operations. Many Government entities, corporations, companies, and organizations which need remote managing, monitoring, and controlling rely on IMCI Technologies to provide and set up the equipment to access the service. Their product portfolio consists of devices such as sensors, meters, and Open-i hardware. The setup includes devices such as Q1000, Q500, Q200, Q100, or the Open-i station that helps with power, network, performance, environmental and related monitoring remotely.
Siemens began in 1847 and is headquartered in Munich, Germany. Siemens focuses in automation and digitalization technology and operates globally. Siemens’s 5 operating segments are digital industries, smart infrastructure, mobility, Siemens Healthineers, and Siemens Financial Services. Siemens Financial Services provides debt and equity investment as well as financing solutions. Siemens Healthineers is a medical devices company that provides products and consulting. Mobility includes passenger and freight transportation. Smart infrastructure includes full solutions for electrification. Digital industries offer both software and hardware for industries and production efficiency.
AP2E SAS, a company founded in 2006 and headquartered in Provence, France, is a manufacturer and supplier specializing in industrial gas analysis systems. The company's product portfolio includes ProCeas biogas analyzers, LaserCEM gas analyzers, and ProCeas NAV gas analyzers. These products are used in various industries, including environmental monitoring, energy production, and semiconductor manufacturing. The company provides services including training, remote diagnosis, and maintenance. Additionally, it is ISO 9001:2015 certified for quality management systems.
Promax Test & Measurement SLU, founded in 1963 and based in Barcelona, Spain, is a manufacturer of telecommunication instrumentation and electronics equipment. The ISO 9001-certified company stocks products like digital modulators for broadcast, earth resistance meters, and optical fiber fusion splicers used to provide testing solutions for satellite, cable, and digital terrestrial television. It stocks over 200 products at its Barcelona facility, with 18 calibration centers and several service centers worldwide. It produces on-demand PCB circuit boards and electronic equipment and offers software development, training, and industrial design services.
HORIBA RADIO LABORATORY was established in Japan in 1945 and has spent the last three-quarters of a century growing as an R&D company and engaged in international operations. HORIBA Scientific offers 200 years of experience developing high-performance scientific instruments and analytical solutions. The HORIBA Group of worldwide companies provides an extensive array of instruments and systems for applications ranging from automotive R&D, process and environmental monitoring, in-vitro medical diagnostics, semiconductor manufacturing, and metrology to a broad range of scientific R&D and QC measurements. Operating in Asia, Europe, and North and South America, HORIBA scientific develops solutions that go beyond just products.
Focused Photonics Inc. was established in 2002 with its headquarters in Hangzhou, China as a manufacturer of monitoring instruments. The company provides solutions for Environmental monitoring of air, water, and stack emissions along with Scientific Instruments for Mass Spectrometry, Chromatography, and Spectroscopy. There are also Industrial Process Analyzers for Gas Chromatography, Leakage Detection, and more. These instruments benefit Smart Cities, Industrial Parks, Oil & Gas, Cement, and Metallurgy industries. The Ecological Development department and the laboratories of Food, Medicine, and Life Sciences also avail the services of these products.
Rotronic is a manufacturer of measurement and monitoring solutions, founded in 1965, and headquartered in Zurich, Switzerland. They offer a wide range of measurement instruments that is specialized in relative humidity, temperature, carbon dioxide, differential pressure, and water activity. Rotronic also offers software and systems for data logging, analysis, and monitoring. These solutions cater to industries where precise measurement and monitoring are essential for maintaining product quality, regulatory compliance, and operational efficiency.
NETVOX was established in 1996 and is a manufacturer of network equipments based in Tainan City, Taiwan. The company manufactures various products such as HVAC monitoring, energy consumption monitor, leak sensor, and battery life evaluator. Custom IoT Solution requests according to customers' specifications are also accepted by the company. The company has partnered with various companies for providing solutions including Daliworks, myDevices, Switzercloud, Amazon Sidewalk, and Senet. The products have been used by companies such as SingGo Tech, SRS Productions, Axon Tracking, Guardian Manager, and Macnica.
Established in 2006, Testo India Pvt. Ltd., a Pune, India-based subsidiary of Testo SE & Co. KGaA, is a manufacturer and supplier specializing in measuring instruments. Complying with the ISO/IEC 17025:2017 standard set by the National Accreditation Board for Testing and Calibration Laboratories (NABL), the company produces measuring instruments for temperature, humidity, pressure, and flow (bulk fluid movement). The company also offers electrical, sound level, and nanoparticle measuring devices. These products are designed for industrial applications with regard to heating, ventilation, air conditioning, and refrigeration (HVAC-R), as well as environmental monitoring technology, in sectors like food service, retail, and pharmaceuticals.
Schneider Electric S.E. is headquartered in Rueil-Malmaison, France, and has been operating since 1836. Schneider Electric provides a number of products and services including electrical car charging, energy management software, surge protection devices, load banks, servers and HMIs, valve and valve actuators, feeder automation, grid automation, and SCADA software products, data center cooling and software, home automation and security, light switches, motion control and robotics, signaling units, solar and energy storage, RFID systems, as well as other hardware, services, and software.
Yokogawa Test & Measurement Corporation was founded in Japan in 1954. Yokogawa currently serves a wide array of industries including the aerospace, automotive, consumer electronics, semiconductor and telecommunications industries with both hardware and software solutions. Among Yokogawa’s suite of products are oscilloscopes, voltage probes, power analyzers and meters, data acquisition tools, optical test equipment, a wide variety of handled meters, calibrators, and testers; analog instruments, and manometers.
Instrumex was established in 1990, in Mumbai, India as a manufacturer and supplier of Pollution Measuring & Analytical Instruments. The company designs pollution measuring, analytical, and laboratory instruments which include weather Monitoring Stations, Air Sampling Pumps, Air Monitoring equipment, Sound level monitoring, and Ambient Air Quality analyzers to name a few. The Weather monitoring analyzes readings for wind speed and direction, temperature, humidity, rainfall, etc. providing a complete solution for Weather Forecast. These instruments and devices have commercial and industrial applications and have uses in laboratories.
Founded in 1890 and is currently holding the ISO/IEC 17025:2005 certification, Pfeiffer Vacuum, Inc. is a supplier and manufacturer of standard and custom leak, flow testing instruments and devices. Their extensive product line includes flow calibration equipment, non-destructive leak testing software, pressure or vacuum-based instruments, and test stations and stands. Pfeiffer Vacuum Inc. offers all types of vacuum applications and serves various industries, including automotive, aerospace, electronics, military, pharmaceutical, medical, oil and gas, and HVAC.
AMETEK Process Instruments, was founded in and is currently headquartered in Pittsburgh, Pennsylvania as a business unit of the Process & Analytical Instruments division of AMETEK, Inc. The company is a manufacturer and engineer that serves customers in markets such as power generation, pollution monitoring, glass manufacturing, semiconductors, and fuel cell research. The company designs analyzing equipment for customer-specific applications. The company manufactures under brands such as Chandler Engineering which produces gas gravitometers, Process Instruments, THERMOX, Trace Analytical, and Western Research.
Acoem, started in 2011 and headquartered in Limonest, France, is a manufacturer of environmental monitoring, industrial reliability, and security equipment and has 12 legacy brands, including Metravib, ecotech, and FixturLaser. Its products include opacity monitors, machine tool measuring equipment, and acoustic threat detectors, used in several sectors like scientific research, industrial processes, and construction. It also provides software for data collection, machinery diagnostics, and predictive maintenance. The company has eight manufacturing facilities and five research and development centers in 11 countries. Its turnover is €140m, and it has over 200 distributors worldwide.
Comde-Derenda GmbH is headquartered in Stahnsdorf, Germany, and is a manufacturer of environmental monitoring technology established in 2011 following the merger of Ingenieurbüro Norbert Derenda and COMDE GmbH. The company's products include gas density and dew point transmitters, weighing systems, and automated sampling systems. It also offers related accessories such as pressure switches, sampling inlets, and a range of aids for the visually impaired. The company is ISO 9001:2015-certified, and primarily serves customers in the environmental monitoring and healthcare sectors.
Dickson, founded in 1923 with headquarters in the USA and facilities in France and Malaysia, is a manufacturer of data logging and monitoring tools, equipment, systems, and accessories. The company's product line includes handheld data loggers, chart recorders, disposable chart recorders, power adapters for Dickson's products, and chart recorder pens. The company provides calibration installation, training, and mapping services. Dickson's products and systems are used in various situations, for example, to measure and monitor changes in ambient temperature and humidity in cleanrooms and warehouses. Dickson also provides solutions for environmental monitoring and regulatory compliance for the company's clients.
Vaisala, established in 1936 in Finland, is a technology company that is a manufacturer of electronic measurement systems and equipment for meteorology, environmental sciences, traffic safety, and industry worldwide. The Company's products include radiosondes, barometric pressure measurements, weather stations, lighting detection systems, and moisture measurement solutions. Vaisala also sells a large selection of its products directly to consumers via the company's online store. The company also provides commercial clients with the XWeather subscription service, which offers numerous options for industrial-grade environmental measurement.
Sibata Scientific Technology Ltd, founded in 1921 at Saitama, Japan is a manufacturer of environmental measurement and occupational health measurement equipment. The company with global clientele produces various scientific measurement and analysis equipment that can range from lab glassware to synthetic reactors. The products line comprise of general lab equipment, extractor, synthetic reactor, Rotary Evaporator and Glass tube oven. These products are used in applications such as occupational safety, food hygiene, water hygiene, hospital and chemical plants as well. The products are ideal for testing quality, measuring dust, precise heating & cooling, personal exposure measurements and many more with more reliability.
Narda Safety Test Solutions GmbH, founded in 2000 and based in Pfullingen, Baden-Württemberg, Germany, is a manufacturer and supplier of measuring equipment for EMF Safety. The company's product range includes Wideband EMF, Selective EMF, Personal Safety EMF, Area Monitoring and Simulation, and SignalShark Handheld. These products are essential for ensuring safety in electromagnetic fields, interference localization, and ensuring electromagnetic compatibility. The company serves industries such as Appliances, Electrical, Electronics Manufacturing, and Environmental sectors. It offers services such as software updates, product literature, training workshops, and certified calibration laboratories.
Netceler, established in 1997, is a France-based designer and service provider that specializes in measurement systems, information systems, software development, and monitoring solutions for critical industrial environments. The company's range of products includes the IVTracer, the GMP certified environmental monitoring system for harmonizing GMP measures of a pharmaceutical industrial sites as well as the Cockpit IVTracer module designed to facilitate the visualisation of measurements. Netceler also offers various services, including engineering, audit of existing installations, cartography assistance, and maintenance services.
Tema Sinergie, established in 1985 and headquartered in Italy, is a supplier and distributor of medical technology solutions. The company specializes in medical linear accelerators, mainly using Pinnacle3 for treatment planning. Its expertise in medical physics, biomedical engineering, and informatics makes it a key provider of solutions in urological oncology, particularly for prostate cancer diagnosis and treatment. It supplies diagnostic radiology dosimetry, dose management, and radiotherapy planning solutions, empowering healthcare providers with state-of-the-art technologies. The company’s solutions include nuclear medicine, barrier isolation technology, and medical physics.
Argus, founded in 2011 with corporate headquarters in Hyderabad, India, is a designer and supplier with expertise in electronic product engineering and manufacturing services, hardware design, software solutions, and system integration & compliance. The company offers a wide range of products and solutions, including data acquisition system & module, interferometric optical sensors used for detecting stimuli including strain, temperature, and pressure as well as medical products & healthcare devices such as external counter-pulsation controller, thoracic sealer & audio trainer, and ICU ventilator.
DOD Technologies was founded in 2003 and is based in Cary, Illinois. The company is an all-in-one gas detection supplier of low-level toxic gas monitoring systems and solutions for industries ranging from semiconductors and commercial to foam manufacturing and emergency response. The company uses a global network of suppliers to reach customers in countries around the world. The company has four primary categories: fixed colorimetric, fixed electrochemical, fixed FTIR systems, and portable systems. The company also offers equipment repair, calibration, installation, design, and training services.
Ranking as of August 2026
Derivation Method| Rank | Company | Click Share |
|---|---|---|
| 1 | Optical Scientific, Inc. |
9.4%
|
| 2 | GWR Instruments, Inc. |
5.6%
|
| 3 | Columbia Weather Systems, Inc. |
4.9%
|
| 4 | CAS DataLoggers |
4.5%
|
| 5 | Emilcott |
4.0%
|
| 6 | Roettele Industries, Inc. |
3.9%
|
| 7 | Particle Measuring Systems |
3.8%
|
| 8 | TALOSYS Inc. |
3.6%
|
| 9 | IMCI Technologies |
3.5%
|
| 10 | HORIBA |
3.4%
|
Derivation Method
The ranking is calculated based on the click share within the environmental monitoring system page as of August 2026. Click share is defined as the total number of clicks for all companies during the period divided by the number of clicks for each company.Number of Employees
Newly Established Company
Company with a History
*Including some distributors, etc.
*Including some distributors, etc.
| Country | Number of Companies | Share (%) |
|---|---|---|
|
United States of America
|
11 | 40.7% |
|
Japan
|
4 | 14.8% |
|
France
|
3 | 11.1% |
|
Germany
|
2 | 7.4% |
|
India
|
2 | 7.4% |
|
Spain
|
1 | 3.7% |
|
China
|
1 | 3.7% |
|
Switzerland
|
1 | 3.7% |
|
Taiwan
|
1 | 3.7% |
|
Italy
|
1 | 3.7% |
254 products found
254 products
Hanshin Trading Co., Ltd.
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■An Afro buddy who is noisy. Measure, record, and transfer the volume to a computer in real time. Sound level meter, sound test master The Sound Te...
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Hanshin Trading Co., Ltd.
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A-Gas Japan Co., Ltd.
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A-Gas Japan Co., Ltd.
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Yagyu Shokai Co., Ltd.
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Yagyu Shokai Co., Ltd.
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NCC Co., Ltd.
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Daiki Sangyo Co., Ltd.
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NC Automation Co., Ltd.
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■Easy wireless conversion with WD100 The WD100 series is a product that uses LoRa (LPWA) wireless technology to collect environmental information a...
Hanshin Trading Co., Ltd.
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The sensor captures oxygen and hydrogen sulfide gas even from a distance. We are selling the oxygen/hydrogen sulfide concentration meter XOS-326, w...
Custom Co., Ltd.
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Marui Co., Ltd.
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Soil testing equipment Soil: Field investigation ■This is a soil investigation device for investigating the characteristics of the ground during on...
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Additel282 high-precision temperature indicating instrument offers the highest possible accuracy and functionality in a palm-sized device. With acc...
Soki Co., Ltd.
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A-Gas Japan Co., Ltd.
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