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    Carbon Monoxide (CO) Gas Sensor, 5ppm to 5000ppm

    The provided Carbon Monoxide gas sensor uses a simple circuit to convert conductivity changes in gas concentration into corresponding output signals. MEMS CO gas sensor with a detection range 5ppm to 5000ppm is a good choice for carbon monoxide leak detection in residential or industrial applications.
    SKU: ATO-GS-702B
    This product has a minimum quantity of 2
    30-day Returns
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    Delivery date: 6-12 days

    Carbon Monoxide (CO) gas sensing provides MEMS technology, 5ppm to 5000ppm detection range, high sensitivity, low power consumption, fast response and recovery, simple driving circuit, suitable for Carbon Monoxide leak detection for residential or industrial purposes.


    Model ATO-GM-702B
    Product Type MEMS Gas Sensor
    Standard Package Ceramic
    Detect Gas Carbon Monoxide (CO)
    Detection Concentration 5~5000ppm CO
    Standard Circuit Conditions Loop Voltage VC ≤24V DC
    Heating Voltage VH

    2.5V±0.1V AC or DC (High Temperature)
    0.5V±0.1V AC or DC (Low Temperature)

    Heating Time TL 60s±1s (High Temperature), 90s±1s (Low Temperature),
    Load Resistance RL Adjustable
    Gas Sensor Characteristics Under Standard Test Conditions Heating Resistor RH 80±20Ω (Room Temperature)
    Heating Power Consumption PH ≤50mW
    Sensitive Body Resistance RS 1kΩ~30kΩ (in 150ppm CO)
    Sensitivity S Ro(in air)/RS (in 150ppm CO)≥3
    Standard Test Conditions Temperature and Humidity 20℃±2℃, 55%±5%RH
    Standard Test Circuit

    VC: 2.5V±0.1V (High Temperature), 0.5V±0.1V (Low Temperature)

    VH: 5.0V±0.1V


    CO gas sensor dimension

    Circuit Diagram

    CO gas sensor circuit diagram

    Tips: What is a carbon monoxide (CO) gas sensor?

    Carbon monoxide (CO) gas sensor is a device designed to detect and measure the presence of carbon monoxide gas in the surrounding environment. Carbon monoxide is a colorless, odorless, and tasteless gas that is produced by incomplete combustion of carbon-containing fuels, such as gas, oil, wood, and coal. It is highly toxic and poses a significant health risk to humans and animals.

    The CO sensor operates based on various technologies, including electrochemical, metal oxide, infrared, and semiconductor sensors. Electrochemical sensors are commonly used and work by measuring the electrical current produced when carbon monoxide reacts with a chemical solution within the sensor. The concentration of carbon monoxide is then calculated based on this current.

    These sensors are crucial for ensuring safety in environments where combustion occurs, such as homes with gas appliances, industrial facilities, and vehicles. When the sensor detects elevated levels of carbon monoxide, it triggers an alarm or activates safety systems to alert individuals and prompt them to take necessary precautions, such as ventilating the area or evacuating. This early detection capability is vital for preventing carbon monoxide poisoning, a potentially life-threatening condition that can lead to symptoms ranging from headaches and dizziness to unconsciousness and death. Regular maintenance and calibration of CO sensors are essential to ensure their accuracy and reliability.

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