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Industry News Carbon monoxide (CO) is a colorless, odorless, and highly toxic gas that poses serious risks in residential environments. It is commonly produced by incomplete combustion from gas stoves, water heaters, fireplaces, and vehicle exhaust systems in enclosed spaces.
Because CO cannot be detected by human senses, a highly accurate and stable carbon monoxide sensor is essential for early warning and life safety protection systems.
Our MQ2-CO-Ф14×14 electrochemical carbon monoxide sensor is designed specifically for residential safety devices, smart home systems, and portable gas detection equipment, offering high sensitivity, fast response, and excellent long-term stability.
Why Carbon Monoxide Detection Is Critical in Residential Environments?
In home and indoor environments, CO exposure often comes from:
Gas water heaters installed in poorly ventilated bathrooms
Kitchen gas stoves with incomplete combustion
Indoor fireplaces or heating systems
Garage or basement vehicle exhaust accumulation
Poor ventilation in enclosed residential spaces
Even low concentrations of CO can cause dizziness, unconsciousness, or fatal poisoning. Therefore, continuous real-time monitoring is essential for home safety systems.
When customers search for “carbon monoxide sensor” or “CO gas sensor”, they usually care about:
✔ Is it accurate enough for early warning?
✔ Does it respond quickly to gas leakage?
✔ Is it stable for long-term home use?
✔ Can it be easily integrated into alarm devices?
✔ Does it reduce false alarms caused by interference gases?
Our sensor is designed specifically to meet these concerns.
The MQ2-CO-Ф14×14 is a fuel-cell type electrochemical carbon monoxide sensor that converts gas concentration into a proportional electrical signal through a redox reaction at the electrode surface.
The output current follows Faraday’s Law, enabling highly accurate and linear gas concentration measurement.
Measurement range: 0–1000 ppm CO
Maximum detection limit: 2000 ppm
Resolution: 1 ppm
Sensitivity: >0.8 nA/ppm
Excellent linear output performance
👉 Ensures accurate detection of low-level CO leakage in residential environments.
Response time (T90): < 30 seconds
👉 Enables rapid detection of gas leaks, improving early warning effectiveness in home safety systems.
The sensor has excellent selectivity in complex indoor environments:
No response to ethanol, methanol, acetone
Very low response to H₂S, SO₂, NO₂
Minor cross-sensitivity to certain gases like hydrogen
👉 Reduces false alarms in kitchens, bathrooms, and mixed-gas environments.
Good linearity across full range
Low drift and high repeatability (<3%)
Suitable for direct integration with MCU-based systems
👉 Ideal for smart home devices, CO alarms, and IoT monitoring systems.
Service life: up to 3 years
Low power electrochemical structure
Stable long-term operation in residential environments
👉 Reduces maintenance cost and replacement frequency for end products.
Installed in kitchens, bedrooms, and near gas appliances for continuous CO monitoring.
Used in centralized safety monitoring systems for property management.
Detects CO accumulation from vehicle exhaust in enclosed spaces.
Integrated into smart gateways, air quality monitors, and connected safety systems.
Compared with semiconductor gas sensors, electrochemical sensors offer:
| Performance | Electrochemical Sensor | Semiconductor Sensor |
|---|---|---|
| Accuracy | High | Medium |
| Selectivity | Strong | Weak |
| Stability | Excellent | Drift-prone |
| False Alarm Rate | Low | High |
| Suitability for Safety Alarms | ✔ Recommended | ❌ Limited |
👉 This makes electrochemical technology the preferred choice for residential CO safety applications.
Looking for CO Sensor Solutions?
We provide:
Electrochemical CO gas sensors
OEM/ODM customization support
Smart gas detection module integration solutions
Technical support for device manufacturers
👉 Contact us for datasheets, samples, and integration support.
Email: [email protected]
WhatsApp: +86 18335818384
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