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This section provides an overview for carbon dioxide sensors as well as their applications and principles. Also, please take a look at the list of 25 carbon dioxide sensor manufacturers and their company rankings. Here are the top-ranked carbon dioxide sensor companies as of May, 2025: 1.CO2Meter.com, 2.Vernier Software & Technology, 3.Cubic Sensor and Instrument Co., Ltd..
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Categories Related to Carbon Dioxide Sensors
A carbon dioxide sensor measures CO2 concentration, typically using methods like non-dispersive infrared absorption, which utilizes CO2's property of absorbing specific infrared wavelengths. Other methods include the solid electrolyte method, where CO2 is ionized in contact with an electrolyte, and the capacitance method, measuring capacitance changes as CO2 dissolves in a polymer.
Carbon dioxide sensors are versatile, and used in various settings:
Different CO2 sensors operate based on the chosen method:
CO2 sensors are employed as ventilation indicators in closed environments to reduce the risk of COVID-19 transmission. They prompt ventilation when CO2 concentrations exceed set levels, helping to manage indoor air quality.
With increased emphasis on ventilation for COVID-19 precautions, CO2 sensors that link to smartphone apps have gained popularity. These sensors provide real-time measurements and alerts, viewable via the app or cloud, enhancing convenience in monitoring CO2 levels.
*Including some distributors, etc.
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Innovaer Technologies, founded in Hinsdale, Illinois, in 2020 is a manufacturer of Air Quality Sensors and Systems for HVAC, Automotive and Medical Devices. The company's product portfolio includes Particulate Matter Sensors, HVAC Gas Sensors, Industrial Gas Sensors, Methyl Bromide sensors, and VOC sensors. The company serves markets including Automotive and Electric Vehicles, Renewable Energy and Energy Storage and Electronics and Medical and healthcare. They also provide services including product selection, installation, preventative maintenance, troubleshooting, and repair.
Vernier Software & Technology is a manufacturer of science education technologies headquartered in Beaverton, Oregon. Founded in 1981, the company primarily provides laboratory equipment, sensors, and software to clients in education, research and development, engineering, and design. The company also offers technology used in environmental science, as well as precision measurement tools for project design to clients including Garmin, LEGO Education, Seacoast Science, and Texas Instruments. Among its services, Vernier Software & Technology offers support and training for educators using its products.
Amphenol Advanced Sensors, established in 1999 and headquartered in St. Marys, Pennsylvania, is a manufacturer and supplier of sensing technologies. Their diverse product portfolio includes temperature sensors like RTDs, thermocouples, and thermistors, serving applications in industrial automation, medical devices, and environmental monitoring. Furthermore, they offer a wide range of pressure sensors, such as absolute pressure, differential pressure, and vacuum sensors, utilized in industrial automation, medical devices, and automotive industries. They also provide an extensive array of air quality sensors, including CO2, VOC, and particulate sensors, serving applications in environmental monitoring, building automation, and healthcare sectors.
Monnit, a private American company started in 2010, is a manufacturer of wireless sensors and IoT data solutions for enterprise remote monitoring worldwide. The company has deep roots as a global IoT supplier with over 52,000 customers, over 39 billion data readings, and more than 2,000 product SKUs. Through modular design, dynamic production, and global distribution, they thrive in smart-device manufacturing. The actionable data they provide—anytime, anywhere—is the solution for virtually any application or use case, and it's IoT data that fuels the most rewarding business solutions.
Headquartered in League City, Texas, Global Detection Systems Corp. is a manufacturer and global supplier specializing in fixed gas detection systems since its establishment in 2001. The technology includes gas sensors, flame detectors, process monitors, and system controllers. GDS Corp applies reliability and ease of use in designing customized configurations of equipment and software for industrial applications, including refineries, chemical plants, and manufacturing facilities. The company also supplies such detection systems for marine applications, as well as toxic gas sensors and protector controllers for municipal water facilities.
CO2Meter, Inc., established in 2006, is a manufacturer based in Ormond Beach, Florida, specializing in gas sensing solutions. The company’s portfolio encompasses an array of gas detectors, analyzers, and sensing technologies, including fixed or wall-mounted gas detectors, monitors, and alarms, as well as portable handheld gas detectors. The company also offers carbon dioxide and oxygen data loggers, desktop monitors for carbon dioxide, as well as nondispersive infrared (NDIR) sensors. These products find applications across diverse industries, such as breweries, cold storage, indoor agriculture, restaurants and food processing, as well as scientific and medical, particularly for industrial safety and indoor air quality purposes.
Calibration Technologies, Inc. (CTI), established in 2004, is a manufacturer based in Columbia, Missouri, specializing in gas detection equipment and solutions. The company’s product offerings include a range of gas detectors, both fixed and portable. Fixed detectors cater to specific gases such as ammonia and carbon dioxide, while portable variants are available in wearable and handheld formats, capable of detecting single or multiple gases. The company also supplies gas detection control panels suitable for outdoor applications, along with calibration gas. These products find applications in harsh environments, such as bottling facilities, cold storage buildings, food processing plants, fishing vessels, and ice rinks.
Diamond Systems LLC was founded in the early 1990s and is headquartered in Cocoa, Florida. The ISO 9001-certified company is a distributor of gas detection and related equipment for manufacturers such as Analog, LANDTEC, Viasensor, and GFG Instrumentation used in the biogas, landfills pumping, and medical fields. The company’s product categories include biogas, pumps & controls, gas detection systems, and medical devices. The company also provides in-warranty and out-of-warranty repair and service on many of the components it sells.
Figaro USA, Inc. is a specialized distributor of gas and air quality sensors for its parent company Figaro Engineering Inc. Founded in 1991 and based in Rolling Meadows, Illinois, the company serves clients in various markets including the HVAC, automation, automotives and home appliances. The company stocks and retails various air quality control solutions — such as refrigerant, ultra-compact, NDIR, dual gas and electrochemical gas sensors — for detecting carbon monoxide, VOCs and combustible gases. Figaro USA's clients include Honeywell, Kidde and Nest Labs.
Dracal Technologies is a developer and manufacturer of data acquisition and sensor products established in 2011 in Brossard, Quebec, Canada. The company primarily produces remote data logging stations outfitted with Ethernet or Wi-Fi connectivity and cloud-based software, USB sensors for physical parameters such as humidity or temperature, and data integration toolkits for a range of platforms. It also offers calibration and certification services for custom engineered products for client projects. The company chiefly serves clients in the research, biomedical, and engineering industries.
Milesight Technology is an ISO 9001:2015-certified manufacturer of smart IoT, 5G, and video surveillance products founded in 2011 and based in Fujian, China. The company's product portfolio includes video surveillance equipment for traffic management, various sensors including ambient light and motion detecting models, gateway devices that connect their products to the cloud or local servers, and controllers such as smart plugs, switches, and dimmers. Milesight Technology also offers OEM, ODM and R&D services to clients in the government, education, and agricultural sectors with demanding surveillance needs.
E+E Elektronik Ges.m.b.H., established in 1975 in Austria, is a manufacturer and provider of cutting-edge sensor solutions for humidity, temperature, and CO2 measurement. The company’s product portfolio includes humidity sensors, temperature sensors, transmitters, and CO2 sensors. These technologies are broadly employed in industries such as HVAC, automotive, pharmaceuticals, and more. E+E Elektronik's team of experienced engineers and professionals collaborate closely with customers to understand their specific needs and deliver tailored sensor solutions. The company also plays a great role in raising measurement accuracy and enhancing improved environmental monitoring and control systems.
Murata Manufacturing Co., Ltd. (Murata Manufacturing) was founded in 1944 and is headquartered in Nagaokakyo, Japan. Murata Manufacturing designs, manufactures, and sells ceramic-based passive electronic components and solutions globally. The company operates through components, modules, and others segments, serving communications, mobility, industrial, healthcare, and personal electronics customers. They company's product offerings include noise suppression products, quartz devices,RFID devices, phase shifters, and wireless connectivity platforms. Services such as webinars and video library are also available for existing and potential customers alike.
Headquartered in Shandong, China, Shandong Renke Control Technology Co., Ltd. is an Original Equipment Manufacturer (OEM) specializing in environmental monitoring technology. Renke has developed a cloud platform that analyzes data collected from diverse environmental sources, including water quality and warehouse security. This platform enables the company to offer a wide range of applications and data-driven solutions across multiple industries. Renke also provides technical support, including field installation, sensor calibration, and automatic control. The company has achieved, among others, the ISO 9001 certification and product certification from the National Institute of Metrology.
Zhengzhou Winsen Electronics Technology Co. Ltd. (ZWET) is an advanced sensor solutions manufacturer based in Zhengzhou, Henan. Established in 2003, the company primarily produces environmental monitoring devices, gas sensors, and air quality monitoring systems for clients in industrial automation, household appliances, environmental safety, and smart agriculture. The company integrates international supply, R&D, and production operations with consulting services for special projects and custom products in its main 323,000-square-foot facility. ZWET is ISO9001, ISO14001, and ISO45001 certified, with international client companies including Honeywell, Huawei, and Ecovacs.
Cubic Sensor and Instrument Co. Ltd., founded in 2003 and based in Wuhan, China, is a manufacturer of gas sensors and sensor solutions and is ISO 9001 certified. It stocks products like spirometers, CO2 sensors, and gas analyzers that serve various fields, including air quality, environmental monitoring, and healthcare. It is a publicly listed company in the SSE STAR Market that has exported its products to more than 80 countries and has obtained more than 100 patents at home and abroad. It has also received ISO 45001, ISO 14001, and Automotive Tier 1 Supplier with IATF16949 certification.
WoMaster is a manufacturer of industrial products. The company offers goods for critical applications such as railway, power and utility, intelligent transportation, and smart city surveillance. The company's R&D team owns critical IIOT hardware and software technologies. With full SMT, DIP, assembly, and test lines, the company EMS has produced industrial devices for more than 20 years. The company EMS passes ISO9001:2015 and ISO14001:2015 quality certificates. The company provides SW and HW (ASIC) integrated protection mechanisms that apply the latest application-specific integrated circuit (ASIC) secure technology.
SST Sensing Ltd is an ISO 9001-certified manufacturer and supplier of oxygen and liquid level sensors established in 2002 in Coatbridge, Scotland, UK. The company specializes in products for detecting the presence, levels, and absence of liquids or gasses, including hazardous area-approved liquid level switches, carbon dioxide sensors, and optical liquid level switches. The company also offers customization, calibration, and repair services. It mainly serves clients in the aviation, transportation, and industrial processing sectors.
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.
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.
Kimo Electronic Pvt. Ltd., established in 1997 and headquartered in Mumbai, India, operates as a manufacturer, supplier, and distributor of industrial and electronic components. Its product line includes electronic motor soft starters from 0.25kW to 50,000 kW (50 mW) and up to 15,000Volts or 15kV for motor acceleration control, industrial brake systems for machinery deceleration and safety, as well as power transmissions for efficient power transfer, and motor control solutions for regulating industrial electric motors. The company is ISO 9000 certified, emphasizing effective quality management.
Sensirion is based in Stäfa, Switzerland, and is a manufacturer of various sensor products that was established in 1998 as a spin-off from the Swiss Federal Institute of Technology (ETH Zurich). The company’s product lineup includes gas flow sensors for medical devices such as ventilators, particulate sensors for indoor air quality control applications, and humidity sensors for use in HVAC systems or smart homes. It also offers specialized sensor models, such as for CO2, formaldehyde, and mass flow controllers. The company mainly serves clients in the consumer appliances, medical devices, and public utilities sectors.
Kaiterra is a company headquartered in Crans-Montana, Valais, Switzerland, which specializes in developing Indoor Air Quality (IAQ) optimization solutions. Its product range includes monitoring devices, software analytics, and turn-key (end-to-end) building integrations designed to reduce carbon emissions in building operations. One of its monitoring products, Sensedge, has received certification from the RESET Air Standard and is widely deployed in various workplaces, including the International WELL Building Institute (IWBI) office in New York City.
Ranking as of May 2025
Derivation Method| Rank | Company | Click Share |
|---|---|---|
| 1 | CO2Meter.com |
8.5%
|
| 2 | Cubic Sensor and Instrument Co., Ltd. |
7.4%
|
| 3 | Innovaer Technologies |
6.5%
|
| 4 | Vernier Software & Technology |
6.5%
|
| 5 | Calibration Technologies, Inc |
6.3%
|
| 6 | Amphenol Thermometrics, Inc. |
6.1%
|
| 7 | Global Detection Systems Corp. |
5.2%
|
| 8 | Monnit |
5.2%
|
| 9 | Diamond Scientific |
4.9%
|
| 10 | Kaiterra |
4.7%
|
Derivation Method
The ranking is calculated based on the click share within the carbon dioxide sensor page as of May 2025. 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
|
10 | 52.6% |
|
China
|
4 | 21.1% |
|
Japan
|
2 | 10.5% |
|
Canada
|
1 | 5.3% |
|
Germany
|
1 | 5.3% |
|
India
|
1 | 5.3% |
102 products found
102 products
Sea Hichi Sea System Co., Ltd.
1910+ people viewing
Last viewed: 4 hours ago
ON/OFF control of ventilation equipment is possible, AC type. ■ Features ・ By controlling the ventilation device, the number of CO2 concentration...
2 models listed
Sea Hichi Sea System Co., Ltd.
1990+ people viewing
Last viewed: 1 hour ago
DC24V type can be controlled by proportional output (analog output) damper etc. ■ Features ・ By controlling the ventilation device, the number of...
3 models listed
Sea Hichi Sea System Co., Ltd.
440+ people viewing
Last viewed: 23 hours ago
In addition to CO2 concentration, control by temperature is also possible ■ Features ・ By controlling the ventilation device, the number of CO2 c...
Sea Hichi Sea System Co., Ltd.
2300+ people viewing
Last viewed: 1 hour ago
Slim half size ■ Features ・ Control with relay output and proportional output is possible ・ By controlling the ventilation device, the number of...
Ryowa Electronics Co., Ltd.
1680+ people viewing
Last viewed: 20 minutes ago
■Features ・Measure carbon dioxide concentration and ensure closed, crowded, and close-contact spaces ・Visualize indoor CO2 values ・Danger will b...
ELT SENSOR Co., Ltd.
360+ people viewing
Last viewed: 16 hours ago
MT-200H is a USB type CO2 measurement monitor. Compact, lightweight and easy to carry, it can be connected to electronic devices such as laptops, d...
Senseway Co., Ltd.
1020+ people viewing
Last viewed: 2 hours ago
This is a CO2/temperature/humidity sensor product from Hattetotte®, a soft wireless sensor that can be easily pasted and peeled off. We use an NDIR...
Sea Hichi Sea System Co., Ltd.
990+ people viewing
Last viewed: 3 hours ago
■ Features ・ Built -in two types of sensors, odor and CO2 concentration ・ “Visualize” odor and CO2 concentration, automatically control ventilati...
Mio Corporation Co., Ltd.
6360+ people viewing
Last viewed: 25 minutes ago
■Product overview By measuring CO2 concentration and capturing changes, you can create next-generation systems. Until now, we have been providing n...
4 models listed
Sea Hichi Sea System Co., Ltd.
890+ people viewing
Last viewed: 13 hours ago
■ Features ・ Built -in two types of sensors, ozone and CO2 concentration ・ “Visualize” the ozone and CO2 concentration, and the ventilation ・ Oz...
Stelltech Co., Ltd.
210+ people viewing
Last viewed: 1 day ago
■Summary You can manage air conditioning and heat stroke prevention anywhere without the need for an app. Install sensor terminals where you want t...
Senseway Co., Ltd.
530+ people viewing
Last viewed: 5 hours ago
RA0715 is equipped with temperature, humidity, and carbon dioxide (CO2) sensors and transmits the detected data via LoRaWAN. The power supply works...
Codec Co., Ltd.
1060+ people viewing
Last viewed: 2 hours ago
This is a system that supports agriculture by monitoring and aggregating the in-field and outdoor environments using various sensors. ■Features ・...
Sea Hichi Sea System Co., Ltd.
530+ people viewing
Last viewed: 14 hours ago
■ Features ・ For the optimal CO2 temperature control in the greenhouse. ・ World's first zero concentration difference CO2 applied. ・ Ideal for m...
Senseway Co., Ltd.
200+ people viewing
Last viewed: 1 day ago
This is an indoor CO2 temperature and humidity sensor terminal. Measures CO2 concentration, temperature, and humidity in indoor spaces. It can be u...
Sea Hichi Sea System Co., Ltd.
450+ people viewing
Last viewed: 1 day ago
Ceiling embedded ozone generator. Ozone CO2 Dual sensor controller Marvel SMA-OVC-II related products. ■ outer dimensions Width 154mm x height 154...
Hosansho Co., Ltd.
21070+ people viewing
Last viewed: 14 minutes ago
■Product overview This product is a sensor that measures the CO2 concentration in the surrounding atmosphere by inserting it into the USB port of a...
2 models listed
Acend Co., Ltd.
3800+ people viewing
Last viewed: 6 minutes ago
■High-precision CO2 sensor for ventilation measures against the new coronavirus ・Displays CO2 concentration, temperature and humidity at the same ...
Sea Hichi Sea System Co., Ltd.
530+ people viewing
Last viewed: 1 day ago
This is an accessory of CO2 sensor / controller Marvel SA-K03 for facilities for horticulture.
2 models listed
J Corporation
520+ people viewing
Last viewed: 1 hour ago
■ Future infectious disease measures The ventilation fan is automatically turned when the carbon dioxide concentration in the air is measured and ...
I Tec
2040+ people viewing
Last viewed: 3 hours ago
The energy required for operation is self -sufficient. Wireless CO2 sensor using "environmental power generation" technology ･ It is a 10 -year ma...
Shinko Technos Co., Ltd.
13590+ people viewing
Last viewed: 7 minutes ago
Indoor installation type -The temperature element is a measured temperature resistor 100Ω/0 ° C (PT100) (IEC 60751 class) Accuracy: ± (0.1+0.0017 ...
6 models listed
NC Automation Co., Ltd.
170+ people viewing
Last viewed: 9 hours ago
■Easy wireless conversion with WD100 The WD100 series is a product that uses LoRa (LPWA) wireless technology to collect environmental information a...
Nissha FIS, Inc
270+ people viewing
Last viewed: 13 hours ago
■Features Infrared absorption type CO2 sensor. High precision.
Let's Corporation Co., Ltd.
380+ people viewing
Last viewed: 4 hours ago
Ventilation is important in facilities and stores to avoid the risk of infection with the new coronavirus. So when should you ventilate? The [CO₂ c...
Sensirion
280+ people viewing
Last viewed: 16 hours ago
TC31 is a chip-sized gas concentration sensor designed for mass-produced products, and accurately measures CO₂ up to high concentration ranges. Ba...
Sensirion
6480+ people viewing
Last viewed: 27 minutes ago
SCD4x is Sensirion's next generation compact CO² sensor with an unrivaled cost/performance ratio. The combination of tape-and-reel packaging and SM...
Sensirion
15950+ people viewing
Last viewed: 8 minutes ago
CMOSens® technology applied to infrared detection enables highly accurate CO₂ measurement at a competitive price. We have integrated our best-in-c...
Sensirion
210+ people viewing
The SCD4x CO₂ gadget is a simple reference design circuit board that demonstrates the superior performance and ease of use of our SCD4x CO₂ sensor ...
Grape System Co., Ltd.
60+ people viewing
Last viewed: 1 hour ago
■What coronavirus countermeasures are required for “facilities where everyone can feel safe” What kind of coronavirus countermeasures are effective...
