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    Picture of Portable CO Gas Sensor, 3 Electrode, 0-500ppm Picture of Portable CO Gas Sensor, 3 Electrode, 0-500ppm Picture of Portable CO Gas Sensor, 3 Electrode, 0-500ppm

    Portable CO Gas Sensor, 3 Electrode, 0-500ppm

    1 review(s) | Add your review
    SKU: SUCH-COS-ACM3100
    $166.18
    ● Portable CO sensor detects 0-500ppm carbon monoxide ● 3-electrode structure supports stable gas measurement ● 1ppm resolution captures small CO concentration changes ● Lightweight sensor suits gas alarms and air purifiers
    🚚 Free shipping
    🕒 Delivery date: 6-12 days
    🔁 30-day Returns
    Overview

    A portable CO gas sensor is a small electrochemical sensor used to detect carbon monoxide concentration in the air. This 3-electrode sensor offers 0–500ppm measurement, 1ppm resolution, fast response, and reliable linear output for real-time CO monitoring. It is suitable for carbon monoxide detectors, indoor air safety devices, industrial protection systems, and environmental gas monitoring equipment.

    Feature

    Portable co gas sensor feature

    • This portable carbon monoxide sensor measures concentrations from 0 to 500 ppm, with an upper limit of 2000 ppm, and responds rapidly to CO gas changes within 30 seconds.
    • The sensor delivers excellent linear output and 1ppm high resolution, ensuring accurate and reliable data even in complex environments spanning -40 to 55°C.
    • Compact in size and weighing only about 1 gram, this SUCH carbon monoxide sensor is highly portable and ideal for home safety detection, industrial protection, and smart home applications.

    Dimension (unit: mm)

    Portable co gas sensor dimension

    Electrode Definition

    Portable co gas sensor electrode definition

    Cross Interference

    Gas Concentration (ppm) Carbon Monoxide Reading (ppm)
    Hydrogen 100 32
    Nitrogen Dioxide 5 0
    Ethanol 200 0
    Hydrogen Sulfide 20 0.3
    Sulfur Dioxide 20 0


    Application Circuit Diagram

    Portable co gas sensor application circuit diagram

    Specs
    Measurement Range 0 to 500ppm
    Upper Limit 2000ppm
    Sensitivity 0.05±0.015μA/ppm
    Response Time T₉₀≤30s
    Baseline ＜±0.2μA (20°C)
    Baseline Drift Equivalent to 0 to 3ppm (-20°C to 40°C)
    Long-Term Drift ＜2% signal value/month
    Output Characteristics Linear
    Resolution 1ppm
    Bias Voltage 0mV
    Operating Temperature -40 to 55°C
    Storage Temperature 0 to 20°C
    Operating Pressure 0.9 to 1.1Bar
    Operating Humidity 15 to 90%RH (non-condensing)
    Orientation Requirements None
    Expected Lifespan 2 years (in air)
    Weight Approx. 1g
    Application
    Portable co gas sensor of air purification equipment

    Air Purification Equipment

    Portable co gas sensor of carbon monoxide analyzers

    Carbon Monoxide Analyzers

    Portable co gas sensor of gas fire detectors

    Gas Fire Detectors

    FAQ
    ❯

    A portable carbon monoxide (CO) sensor is a compact device designed to detect and measure carbon monoxide concentrations in the air. It provides real-time readings and triggers alarms when concentrations exceed safe thresholds, helping users prevent carbon monoxide poisoning in enclosed or industrial environments.

    ❯

    Typically employing an electrochemical sensing element, the sensor reacts with CO molecules to generate an electrical signal proportional to CO concentration. This signal is then converted into readable ppm values displayed on a screen.

    ❯

    Portable CO sensors are suitable for enclosed spaces such as residences, garages, factories, parking lots, tunnels, and storage rooms. They are also essential tools for safety inspectors and HVAC technicians.

    1 review(s)
    5.0 1
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    Jason Caldwell | 7/1/2026 9:36 AM
    portable co gas sensor solid for home safety check
    got a Portable CO Gas Sensor for a small garage workshop where I sometimes run a generator. the Portable CO Gas Sensor was easy to start up, just powered it and let it stabilize for a bit. readings react quickly when I tested it near exhaust, which is reassuring. nothing complicated, just a straightforward device that seems to do the job without fuss.
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