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  6. 【ELT SENSOR】CO Concentration Sensor Module

【ELT SENSOR】CO Concentration Sensor Module

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『CO-S20-3V』

last updated:Nov 21, 2025

セイワ 東京本社、関西支社、名古屋営業所、中国無錫  グループ会社 エレクトロン(長野県松本市)
セイワ 東京本社、関西支社、名古屋営業所、中国無錫  グループ会社 エレクトロン(長野県松本市)
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Maintains high accuracy through dual correction of CO concentration (carbon monoxide concentration) and temperature! Electrochemical gas sensor module for CO measurement.

The 『CO-S20-3V』 is a CO sensor module that combines excellent accuracy and long-term reliability. It maintains high accuracy through dual compensation for CO concentration and temperature. It supports various applications such as CO detectors, factory environments, parking lots, kitchens, HVAC, and enclosed spaces. 【Features】 ■ Pre-calibrated (at factory shipment) ■ Automatic calibration and manual calibration function (zero-point calibration) ■ Output: UART, I2C, PWM, ALARM (open collector) ■ Compatible with the S-300 series (uses the same PCB) ■ Lifespan: 5 years (8-year lifespan product is available as an option) ■ Size: 33mm x 33mm x 12.5mm / Weight: 5g *For more details, please refer to the PDF document or feel free to contact us.

    Security Sensor Systems
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【ELT SENSOR】CO Concentration Sensor Module

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  • Related Link - https://www.seiwa-tr.co.jp/lineup/eltsensor/

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basic information

【Performance】 ■Detected Gas: Carbon Monoxide ■Operating Temperature Range: -20℃ to 50℃ ■Operating Humidity Range: 15 to 90% RH (without condensation), Type G: 15 to 90% RH (without condensation) ■Operating Environment: Residential facilities, commercial facilities, kitchens, fire detection, underground parking lots, enclosed spaces, etc. ■Storage Temperature: 0℃ to 20℃ (storing in high-temperature environments may adversely affect lifespan) *For more details, please refer to the PDF document or feel free to contact us.

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Applications/Examples of results

For more details, please refer to the PDF document or feel free to contact us. ■ CO detectors ■ CO alarms ■ Factory environments ■ Parking lots ■ Kitchens (incomplete combustion) ■ HVAC We support various applications such as enclosed spaces.

Detailed information

  • COと人体への影響.png

    Carbon monoxide (CO) concentration has a fatal impact on the human body. It is generated by incomplete combustion. It is important to detect CO concentration.

  • 事故記事.png

    Various articles about carbon monoxide poisoning are being discussed.

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[ELT SENSOR] CO Sensor Module 'CO-S20-3V'

[ELT SENSOR] CO Sensor Module 'CO-S20-3V'

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セイワ

セイワ 東京本社、関西支社、名古屋営業所、中国無錫  グループ会社 エレクトロン(長野県松本市)

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The development of electronics has given people great dreams and has turned those dreams into reality one by one. This development has been passed on to the 21st century, inspiring even greater dreams and hopes. I am deeply grateful and joyful to be engaged in a job that plays a part in this electronics industry. Moving forward, I will continue to serve as a conduit for the appropriate information on semiconductors and electronic components, so that I can contribute to the realization of humanity's great dreams and assist our clients in their product and information development. I sincerely hope to grow together with our clients in the information society of the 21st century. However, on the other hand, environmental issues have become a major focus. As a member of society, I feel the importance of leaving a rich natural environment for the future and preserving the fundamental values of humanity. I am committed to striving towards becoming a company that harmonizes with nature and society as we move towards an endless future.

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