Electrochemical CO Sensor MEu-2CO

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The MEu-2CO sensor is a fuel cell sensor. Carbon monoxide and oxygen undergo a corresponding oxidation-reduction reaction on the working electrode and counter electrode and release charges to form a current. The current generated is proportional to the concentration of carbon monoxide and follows Faraday's law. The size can determine the concentration of carbon monoxide. 


Excellent repeatability and stability 

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CO Alarm

In daily life, coal, charcoal, and liquefied petroleum gas will produce carbon dioxide after combustion, and carbon dioxide will be reduced to CO in a poorly ventilated environment. CO is a suffocating poison gas, which is colorless, odorless, and non-irritating. If CO leaks, it cannot be discerned by the eye or nose. As we all know, poor ventilation during combustion can lead to a decrease in oxygen content, resulting in incomplete combustion and increased CO production. When the concentration of CO in the room continues to increase, people will gradually feel headache, nausea, difficulty breathing, collapse, dizziness.


Other Detector

Formaldehyde detector is an instrument for detecting formaldehyde. Generally, semiconductor sensors and electrochemical sensors are used to realize the rapid semi-quantification of formaldehyde in indoor air on the spot, which is characterized by simple structure, small size, intuitive,easy to carry and use.


Vehicle CO Detection

If you rest in a closed car while parking and idling, shortness of breath may occur over time. If you sleep with the air conditioner turned on in the cab or with a truck heater, it is easy to inhale too much carbon monoxide and cause poisoning and loss of consciousness. In severe cases, life will be lost.


Water Heater

In the current mid-to-high-end gas water heater market, carbon monoxide protection and gas leakage protection functions have become common configurations. As a professional sensor company, Winsen Technology provides gas sensor and CO2 sensor application solutions for gas water heaters.


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Specification Product Size

Technical Data Sheet

Model No. MEu-2CO
Detection Gas Carbon monoxide(CO)
Measurement Range 0~500ppm
Max Range 1000ppm
Sensitivity (45±15)nA/ppm
Response time(T90 <15S
Zero point output (in clean) <±2ppm(Equivalent CO)
Zero drift(-40℃~+50℃) < +10ppm(Equivalent CO)
Repeatability <±3% output value
Linearity Within ±5%
Stability <2%
Filter Acid gas, organic vapor
Range of working temperature Continue working -10℃~+50℃
Intermittent working -20℃~+50℃
Working humidity range 15%RH~ 90%RH(No condensation)
Working pressure range 1atm±10%
Long-term output drift <5%/Year
Recommended storage environment +10℃~+30℃
Expected service life 8 Years(in the air)
Storage time Original package≤6 months



Free Guide! Learn the Parameter Differences of Similar Sensors

Wondering how to find the most suitable one for you out of so many sensors? Download our free guide to learn the comparison table of technical parameters. 



As a pioneer in gas sensor based solutions with the advanced processes, technologies and products, Winsen offers a wide range of gas sensors:


As a pioneer in gas sensor based solutions with the advanced processes, technologies and products, Winsen offers a wide range of gas sensors:


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How to choose the right sensor for your project?

We have 17 sensor series, 200+ categories, and 300+ detection objects for gas detection. Such as CO, CO2, VOC, PM2.5, CH4, LPG and so on. In particular, we also have MEMS sensors. According to your industry application, gas principle, power consumption, accuracy, and range requirements, and we can select a specific model for you. You can also use the product filter below to choose a suitable product, or choose online serivce.

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Winsen is a factory with over 30,000 square meters area and 500+ production machines which is focusing on sensors development&manufacturing. It has strong R&D strength with more than 100 R&D personnel.

How long is the delivery time?

1-7 days after received payment

What is your warranty term?

The warranty period is one year from the date of shipment. If the appearance of the product is not damaged, it can be returned after confirmation. For damage not caused by Winsen, the customer shall bear all maintenance costs.

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