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    CO Sensor

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    Electrochemical Carbon Monoxide Sensor, 0-500ppm/0-1000ppm

    ● Electrochemical CO sensor for carbon monoxide monitoring ● 0-500ppm / 0-1000ppm selectable detection range ● 1ppm resolution with fast and stable signal response ● Used in CO alarms, analyzers and ventilation systems
    $52.22

    Carbon Monoxide Gas Sensor with MEMS, 5-5000ppm

    ● Carbon monoxide gas sensor based on MEMS technology ● Detects 5-5000ppm CO in air monitoring systems ● Low-power design with fast response ● Adjustable output circuit for CO alarm devices
    $30.03

    CO Transmitter with OLED Display, 0-1000ppm/0-2000ppm

    ● Industrial CO transmitter for carbon monoxide monitoring ● 0-1000ppm / 0-2000ppm ranges with 1ppm resolution ● OLED display shows real-time CO concentration clearly ● RS485, 4-20mA, 0-5V, 0-10V output options
    $98.24

    Industrial CO Sensor, 0-1000ppm

    ● Industrial CO sensor with 0–1000ppm CO detection ● 0–1000ppm standard range, up to 2000ppm maximum ● High-sensitivity detection tracks low CO concentration ● Reliable electrochemical sensing in industrial environments
    $73.18

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

    ● 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
    $166.18

    CO Sensor Module, 0-500ppm, UART Output

    ● Electrochemical CO sensor module, 0-500ppm detection ● 0.1ppm resolution captures low carbon monoxide levels ● UART/DAC voltage output supports smart device integration ● 5V-12V compact module suits alarms and air quality systems
    $67.12

    Smart Carbon Monoxide Sensor, 0-999ppm

    ● Smart carbon monoxide sensor, 0-999ppm ● 51ppm CO alarm with sound and light warning ● CO, temperature and humidity real-time display ● Optional combustible gas detection for added safety
    $70.29

    Wireless Carbon Monoxide Sensor, 0-1000ppm

    ● Wireless CO sensor with 0–1000ppm detection range ● 50ppm alarm threshold with sound and light alerts ● 1000mAh rechargeable battery and Type-C charging ● Portable carbon monoxide monitor for home, garage and camping
    $89.59

    CO Detection Sensor, 0-300ppm, RS485/0-10V

    ● 0-300ppm carbon monoxide detection ● Electrochemical CO sensing with 1ppm resolution ● RS485, 0-10VDC and relay output ● Fast <30s response for ventilation control
    $315.29

    Carbon monoxide (CO) sensors are a type of highly sensitive safety sensor designed to detect CO concentrations in the air. They are primarily used in boiler rooms, underground parking garages, tunnels, gas equipment rooms, industrial workshops, home safety monitoring, and around various combustion equipment. Carbon monoxide is colorless and odorless; even trace leaks can pose a life-threatening danger. Therefore, high-precision, rapid-response CO sensors are critical for risk prevention.

    Such.com offers a comprehensive selection of industrial-grade and consumer-grade CO sensors, including electrochemical CO modules, portable CO detectors, and RS485/4–20mA output sensors with smart communication capabilities. Each model features high sensitivity, rapid response, minimal zero drift, and strong anti-interference performance, maintaining stable readings across varying temperatures, humidity fluctuations, and complex air compositions. Suitable for long-term continuous monitoring, they can also integrate with smart building systems to enable automatic exhaust, alarm linkage, and other functions.

    Every product in the SUCH CO sensor catalog offers multiple range options to meet diverse needs from home safety to industrial high-concentration monitoring. Sensors can be selected as required and support periodic calibration to maintain long-term accuracy. For intelligent monitoring scenarios, we also provide sensor models compatible with data integration systems, enabling remote monitoring, data logging, and trend analysis.