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Oxygen concentration meter(ppm) - List of Manufacturers, Suppliers, Companies and Products

Last Updated: Aggregation Period:Sep 24, 2025~Oct 21, 2025
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Oxygen concentration meter Product List

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Standard Type Oil Moisture Meter EE360

For oil degradation diagnosis! A multifunctional installation that enables highly accurate measurement of moisture in oil.

● Temperature measurement range up to 180°C ● Maximum pressure 2MPa ● Measurement possible with water activity (aw) / moisture content (ppm) ● 3.5-inch TFT color display (optional) ● Equipped with data logging function ■ The EE360 is a high-precision moisture meter for oil that measures water activity (aw) and temperature, and can also calculate ppm. Measuring moisture in oil helps diagnose contamination and degradation, ensuring you don't miss the timing for oil replacement. The probe can be used in environments with a maximum temperature of 180°C and a maximum pressure of 2MPa, and you can choose between ISO parallel threads or NPT threads for positioning. If you select the optional ball valve, you can attach and detach the probe without stopping the process. The housing is designed for easy installation and maintenance, and can be selected from IP65 polycarbonate or stainless steel. For more details, please download the catalog or contact us.

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Galvani-style low-cost oxygen concentrator Model 201LC/2001LC

Low-cost model for OEM oxygen concentration measurement in ppm/%!

● High value-added OEM model inheriting the concept of the 201RS/2001RS series ● Achieves low price ● Small and compact model ● Adopts self-developed galvanic cell type sensor that is resistant to combustible gases and organic solvents ■ Model 201LC/2001LC utilizes the same front panel and digital electronics as Model 2001RS, functioning as an oxygen analyzer for PPM and percent levels. Like other models, it uses our self-developed AMI galvanic cell type (electrochemical) sensor, excelling in basic performance such as response speed, reproducibility, and lifespan. * Compared to the 201RS/2001RS series, it does not have digital communication functions, but there are no differences in measurement range, accuracy, or response speed. ■ The sensor is a disposable cartridge type, allowing for easy manual replacement of the sensor from the front panel. For more details, please download the catalog or contact us.

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Oil-insert type digital moisture meter probe MOP301

Digital communication function included! Oil moisture meter probe.

● A sensor with excellent long-term stability and contamination resistance ● Easy-to-install structure ● Available with RS485 interface ● Displays measurement data in conjunction with Sigma 05 ■ The MOP301 can accurately measure the moisture content in insulating oils, lubricating oils, diesel fuels, and more. It is ideal for preventive maintenance of equipment machinery. In addition to accurate measurements of moisture activity [aw] and temperature [T], the MOP301 can calculate the absolute moisture content in oil in ppm. This calculation is based on the specific solubility parameters of the oil.

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Laser Moisture Meter Model 4010BR

Laser type! Responds quickly to concentration changes! The world's smallest installed TDLAS moisture meter.

★This model has been discontinued. The successor model is the Model4010LX.★ ● The world's smallest compact wavelength-variable diode laser moisture meter ● Explosion-proof class Class I, Div I, Group B, C, D ● Equipped with data logger and sampling system ● Measurement at PPM levels ● Measurement time is within just 2 seconds (90% response) ■ The Model4010BR is suitable for moisture measurement under conditions requiring explosion-proof functionality, primarily in natural gas and petrochemical applications. Gas molecules such as saturated water vapor, oxygen, and hydrogen contained in process gas have the property of absorbing near-infrared light. The wavelength range at which gas molecules absorb near-infrared light varies depending on the type of gas, and by precisely measuring the wavelength range absorbed by saturated water vapor using TDLAS, it is possible to accurately measure the amount of saturated water vapor without being affected by other gas molecules. Additionally, we have re-evaluated the design concerning the issues of high cost and the need for large installation space that were problems with conventional laser absorption spectroscopy, achieving miniaturization and lower prices. *For more details, please refer to the PDF document or feel free to contact us.*

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Laser Moisture Meter Model 4010LX

Laser type! Responds quickly to concentration changes! The world's smallest installed TDLAS moisture meter.

● Successor model of the laser moisture meter Model 4010BR ● World's smallest compact wavelength-variable diode laser moisture meter ● Capable of measurement even with trace amounts of ammonia gas present ● Explosion-proof class Class I, Div I, Group B, C, D ● Equipped with data logger and sampling system ● Measurement at PPM levels ● Measurement time is just under 2 seconds (90% response) ■ Model 4010LX is suitable for moisture measurement under conditions requiring explosion-proof functionality, primarily in natural gas and petrochemical applications. Gas molecules such as saturated water vapor, oxygen, and hydrogen contained in process gas have the property of absorbing near-infrared light. The wavelength range at which gas molecules absorb near-infrared light varies by gas type, and by pinpoint measuring the wavelength range absorbed by saturated water vapor using TDLAS, it is possible to accurately measure the amount of saturated water vapor without being affected by other gas molecules. Additionally, the design has been revised to address the issues of high cost and the need for large installation space that were problems with conventional laser absorption spectroscopy, achieving miniaturization and lower prices. *For more details, please refer to the PDF document or feel free to contact us.*

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Compact Dissolved Oxygen Meter / ECO531

Equipped with a maintenance-friendly galvanic battery-powered sensor.

The ECO531 series is a dissolved oxygen meter equipped with a maintenance-friendly galvanic battery-operated sensor. It can directly read both dissolved oxygen in mg/l (ppm) and saturated oxygen concentration in percentage. The ECO531 series can be used for water quality monitoring in various applications such as freshwater and seawater aquariums, fish farms, and wells. Simple calibration can be performed through button operation in the atmosphere, and by attaching the GSKA cap that protects the membrane, it can be used in deep water areas. The 3-stage LCD display with backlight provides ease of use and wide visibility both day and night, while the energy-saving design and configurable auto power-off function ensure a long lifespan for the two AA batteries that power it. It supports maximum/minimum and hold display functions.

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Principle of oxygen concentration meters

Principle of Galvanic Battery Type/Zirconia Type Oxygen Concentration Meter

At Tekune Measurement, we handle two types of oxygen concentration meters based on the principles of galvanic cell and zirconia methods. 〇 Galvanic Cell Type The lead anode facilitates the reduction reaction at the cathode by undergoing an oxidation reaction. It behaves as if combustion is occurring at the anode due to oxygen, generating current, which is why it is also referred to as a fuel cell type. PPM models: 2010BX, 2001RS, 2001LC, 1000RS % models: 210BX, Oxtron, 201RS, 1100BE, 201LC 〇 Zirconia Type It compares unknown process gases using known reference gases and the Nernst equation. The electromotive force of the sensor is measured to determine the oxygen concentration. Examples of PPM models: 4100, 7100, etc. Examples of % models: 111, 5100, etc. For more details on the principles of oxygen concentration measurement, please refer to the URL below.

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Trace Oxygen Analyzer 'MXN/S'

Rich delivery track record! Oxygen analyzer compatible with JIS standards, capable of obtaining traceability.

The "MXN/S" conforms to JIS standards for oxygen analyzers and can issue calibration certificates. It is equipped with a zero gas and calibration gas generation function built into the main unit, eliminating the need for calibration gas and reducing running costs. Additionally, it has a built-in temperature compensation circuit that mitigates fluctuations in readings due to changes in gas temperature and ambient temperature, and by incorporating a mass flow controller, it can reduce the effects of pressure and flow rate variations. Customers considering upgrading from other products can request a demonstration. 【Features】 ■ Built-in zero gas and standard gas generator ■ Built-in mass flow controller ■ Automatic distilled water replenishment ■ Built-in temperature compensation circuit *For more details, please refer to the catalog or feel free to contact us.

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Zirconia-type oxygen concentration meter TB-II VN/TB-II V series

Direct insertion into small sealed containers and vacuum furnaces where sampling is difficult! Zirconia-type O2 sensor.

The "TB-II VN" and "TB-II V" series are oxygen concentration meters that use stabilized zirconia ceramics in the detector. They can be directly inserted into small sealed containers or vacuum furnaces where sampling is difficult, allowing for oxygen partial pressure measurements under a reduced pressure of 1×10-3 Pa (1×10-5 Torr). They have a simple structure and are easy to maintain. *For more details, please download the catalog or contact us.*

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Introduction of measurement instruments with overseas and domestic explosion-proof certification.

Presentation of materials summarizing field usage examples of explosion-proof measuring instruments such as explosion-proof dew point meters and humidity/temperature/water content meters in oil!

We offer a range of explosion-proof measuring instruments, including explosion-proof dew point meters. If you are having trouble measuring moisture or oxygen, please feel free to consult us. 【Product Lineup】 ■ Explosion-proof Dew Point Meter - Explosion-proof dew point transmitter 'TK-100TR-EX' A dew point meter certified for explosion-proof use in Japan (TIIS). ■ Temperature and Humidity / Moisture Meter in Oil - Temperature and humidity dew point transmitter 'EE300Ex-HT' A product certified for intrinsic safety explosion-proof use in Japan, measuring temperature, humidity, and moisture in oil. ■ Oxygen Concentration Meter - Galvanic-type explosion-proof oxygen concentration meter '210BX/2010BX' (certified overseas by IEC/CSA, application for domestic certification in progress) For measuring oxygen in conditions requiring explosion-proof products, in % and ppm. - Inert Gas Control System (ICS) 'Oxytron 2000/Mini-ICS' Certified for explosion-proof use in Japan, for monitoring oxygen concentration and controlling the flow rate of inert gas. ■ Hydrogen Sulfide Meter - Explosion-proof trace hydrogen sulfide analysis system '3010BX' Certified for explosion-proof use in Japan (application in progress), capable of measuring 0 to 2,000 ppm. *Please feel free to contact us regarding measurement ranges, accuracy, and other inquiries.

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About moisture meters in oil

Easy to handle! Enables quantitative evaluation of moisture content in various oils! Easy maintenance!

1) Easy to handle Unlike the Karl Fischer method, no special techniques or reagents are required. With the handheld type, you can measure simply by inserting the probe into the oil (it responds in 5 to 10 minutes). With the continuous measurement type, by placing the probe in the oil flow path, you can continuously monitor moisture changes, which can be used for diagnosing oil contamination and degradation, ensuring you don't miss the timing for oil replacement. 2) Quantitative evaluation of various oils is possible When displaying in ppm conversion, we conduct analysis using the Karl Fischer method and set a conversion coefficient suitable for that oil. Therefore, even with ppm measurements, you can measure various oils while maintaining measurement accuracy equivalent to the Karl Fischer method. 3) Easy maintenance Customers can clean the sensor part themselves. We also provide a simple calibration kit, allowing customers to perform basic calibration on their own. Repairs and calibrations such as probe and sensor replacements can also be conducted domestically. Our technicians can visit the site to perform calibration on-site if needed. For more details on moisture measurement in oil, please visit the URL below.

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Gas analyzer, trace oxygen analyzer, Delta F

An oxygen gas analyzer capable of analyzing levels from % to ppm to ppb. It is non-consumable with minimal reduction of electrolyte. Span calibration is only required once a year.

Delta F Company has over 40 years of experience in trace and ultra-trace oxygen measurement and trace moisture measurement. The electrochemical oxygen sensor developed independently by the company is a non-consumable type that can be used stably for a long period. In 2010, it became a member of the group of Servomex, a global manufacturer of oxygen analyzers based in the UK. Please contact us for more details.

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Compact Oil Moisture Meter EE381

For confirming oil contamination and degradation. A transmitter specialized in measuring moisture in oil.

● Measurement of moisture activity value 0-1 aw in oil ● Moisture content can be converted to ppm values ● Temperature measurement range -40 to 120℃ ● Maximum pressure 10 MPa ● Models with display available ● 360° rotating screw connection allows for fine adjustment during installation ■ The EE381 is ideal for online management of moisture in lubricating oil and insulating oil, and diagnosing oil degradation is crucial for maintaining long-term performance and maintenance of factories and equipment. For example, moisture significantly affects the insulating properties of electrical transformer oil, making continuous measurement of moisture in oil extremely important. For more details, please download the catalog or contact us.

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