19 Carbon Dioxide Sensor Manufacturers in 2023
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 19 carbon dioxide sensor manufacturers and their company rankings. Here are the top-ranked carbon dioxide sensor companies as of April, 2023: 1.Cubic Sensor and Instrument Co., Ltd., 2.Vernier Software & Technology.
What Is a Carbon Dioxide Sensor?
A carbon dioxide sensor is a sensor used to measure the concentration of CO2.
Generally, the non-dispersive infrared absorption method is used, which takes advantage of CO2's property of absorbing specific infrared wavelengths. Another method is the solid electrolyte method, which measures CO2 concentration, ionizing CO2 by bringing CO2 into contact with an electrolyte. Also, a capacitance method that measures the concentration of CO2 by measuring the capacitance that changes as CO2 dissolves and expands in a polymer.
Uses of Carbon Dioxide Sensors
Carbon dioxide sensors are widely used. When selecting a carbon dioxide sensor; the accuracy of CO2 concentration detection, accuracy of the correction process, connectivity, and size should be considered. Examples of uses are:
- Exhaust gas inspections in factories
- Fire alarms in housing facilities
- CO2 volume control in plastic greenhouse agriculture
- Exhaust gas measurement in automobiles
- Monitoring of CO2 concentration in vehicles and rooms, such as in air-conditioning facilities
- CO2 concentration measurement in carbonated beverage manufacturing plants
Principle of Carbon Dioxide Sensors
The principle of operation of carbon dioxide sensors varies depending on the measurement method. Typical examples are the non-dispersive infrared absorption method, the solid electrolyte method, and the capacitance method.
1.Non-Dispersive Infrared Absorption Method
A CO2 sensor based on non-dispersive infrared absorption method which consists of a light source, a container for holding the gas to be measured, an optical filter, and a light-receiving element. Infrared light is irradiated from the light source into the container, and an optical filter transmits only the specific wavelengths of CO2 that are absorbed by CO2. The infrared absorption method measures the concentration of CO2 by detecting that light with a light receiving element.
2.Solid Electrolyte Method
The solid electrolyte method consists of an electrolyte, a layer of carbonate, and an electrode. The electrolyte and CO2 are separated by a layer of carbonate, which causes the carbonate ions to move, and the method measures the concentration of CO2 by measuring the electromotive force caused by this movement.
3.Capacitance Method
The capacitance method consists of a conductive polymer compound and an electrode; as CO2 dissolves in the polymer compound, the capacitance changes. The CO2 concentration is measured by measuring the amount of change.
Other Information on Carbon Dioxide Sensors
1. Countermeasures Against New Coronaviruses Using Carbon Dioxide Sensors
Adequate ventilation is said to be important for countermeasures against new coronavirus infection. Frequent ventilation is not possible in winter, for example, due to dryness and low ambient air. Therefore, an attempt is underway to use a carbon dioxide sensor as a guide for ventilation timing, with a system that prompts ventilation when the CO2 concentration exceeds a certain value, and is expected to visualize the so-called "density" of people.
The carbon dioxide sensor can be used to alert a computer in a conference room during a business meeting when the CO2 concentration exceeds a certain level, for example.
2. Carbon Dioxide Sensors that Can Easily Measure CO2 Concentration by Linking with a Smartphone Application
In recent years, ventilation has become more important as a measure against new coronavirus infection, and demand for CO2 sensors is increasing. Carbon dioxide sensors that can easily measure CO2 concentration by linking with a smartphone app have been developed to meet this need. Results can be viewed on a smartphone or in the cloud through a Wi-Fi connection. With the smartphone application, you can view the various measurements in real time and check the changes on a graph. In addition, the app has a function that notifies the smartphone when the set values are exceeded, so there is no need to check the app frequently.
List of 19 Carbon Dioxide Sensor Manufacturers
*Including some distributors, etc.
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- Company Size: largest first
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Innovaer Technologies
Non-Dispersive Infrared (NDIR) Sensors
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Carbon Dioxide Sensor Manufacturer Ranking
*Including some distributors, etc.Ranking as of April 2023 in United States of America
Derivation Method| Rank | Company | Click Share |
|---|---|---|
| 1 | Cubic Sensor and Instrument Co., Ltd. | 87.5% |
| 2 | Vernier Software & Technology | 12.5% |
Ranking as of April 2023 Globally
Derivation Method| Rank | Company | Click Share |
|---|---|---|
| 1 | Cubic Sensor and Instrument Co., Ltd. | 87.5% |
| 2 | Vernier Software & Technology | 12.5% |
Derivation Method
The ranking is calculated based on the click share within the carbon dioxide sensor page as of April 2023. 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
- Zhengzhou Winsen Electronics Technology Co., Ltd.: 50
Newly Established Company
- CO2Meter.com: 2006 (17 years ago)
- Calibration Technologies, Inc: 2004 (19 years ago)
- Zhengzhou Winsen Electronics Technology Co., Ltd.: 2003 (20 years ago)
Company with a History
- Pressac Communications Limited.: 1950 (73 years ago)
- Zhengzhou Winsen Electronics Technology Co., Ltd.: 2003 (20 years ago)
- Calibration Technologies, Inc: 2004 (19 years ago)
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