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

    SKU: SUCH-COS-300OLED
    $98.24
    ● 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
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    🚚 Free shipping
    🕒 Delivery date: 6-12 days
    🔁 30-day Returns
    Overview

    This SUCH CO transmitter is an industrial carbon monoxide sensor for real-time CO gas monitoring. It features 0-1000ppm or 0-2000ppm range options, OLED display, 1ppm resolution, electrochemical detection, and RS485/4-20mA/0-5V/0-10V output for flexible system integration. Suitable for underground parking garages, boiler rooms, laboratories, ventilation systems, smart buildings, and industrial safety monitoring.

    Feature

    CO transmitter feature

    • The carbon monoxide transmitter is widely applicable in air quality monitoring equipment, fresh air ventilation systems, smart homes, and other scenarios requiring CO and temperature/humidity monitoring.
    • The SUCH CO transmitter features complete isolation between its input power supply, sensing probe, and signal output sections, with optional RS485 or analog output signals.
    • The gas sensor employs an advanced and professional electrochemical probe, offering higher precision and stability compared to traditional semiconductor probes. It is safer, more reliable, and easier to install.

    Dimension (unit: mm)

    CO transmitter dimension

    Extension Probe

    CO transmitter extension probe dimension

    Detail

    CO transmitter detail

    1. Waterproof Breathable Membrane: The carbon monoxide sensor utilizes high-molecular-weight waterproof materials to enhance airtightness and water resistance. It effectively expels internal moisture while maintaining unique breathability, ensuring unimpeded gas flow and precise measurement accuracy.
    2. High-Density Material Housing: Constructed from high-density material with internal waterproof sealing strips, the housing delivers exceptional moisture resistance.
    3. Four-core Waterproof Shielded Cable: SUCH Sensor Online Store selects premium cables that are waterproof, oil-resistant, and anti-aging, with strong anti-interference capabilities to ensure stable signal transmission.

    Wiring Diagram

    CO transmitter rs485 wiring diagram

    RS485 Output

    CO transmitter analog output wiring diagram

    Analog Output

    Specs
    Output Signal RS485 4-20mA 0-5V 0-10V
    Power Supply 10~30V DC 10~30V DC 10~30V DC 24V DC
    Avg. Power Consumption 0.18w
    Humidity Accuracy ±3% RH
    Display OLED
    CO Resolution 1 ppm
    CO Accuracy ±5 ppm or ±10%
    Zero Drift ±3 ppm
    Operating Temp -20 to 50°C
    Operating Humidity 15 to 90% RH (non-condensing)
    Stability ≤2% signal value/month
    Response Time ≤30 s
    Warm-up Time >5 min
    Repeatability ≤2%
    Pressure Range 90 to 110 kPa
    Application
    CO transmitter of air quality monitoring equipment

    Air Quality Monitoring Equipment

    CO transmitter of fresh air ventilation systems

    Fresh Air Ventilation Systems

    CO transmitter of smart home

    Smart Home

    FAQ

    A CO transmitter is used to monitor CO concentration in the air in real time and convert it into an electrical signal (such as an analog signal or RS485). It is widely used in underground parking garages, boiler rooms, tunnels, and industrial facilities to prevent personnel poisoning and equipment damage.

    CO transmitter common ranges include 0–100 ppm, 0–1000 ppm, or 0–2000 ppm, selectable based on the operating environment. Different models can adjust their range through calibration to ensure high-precision monitoring.

    Install it away from air inlets and high-airflow areas, mounting it horizontally approximately 1.5 meters above the floor. Ensure the sensor faces the direction of airflow to accurately sample gases.

    5.0 1
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    Charles | 5/6/2026 5:55 AM
    Simple but very effective device
    Setup was quick, and no technical steps were required. I keep it in my kitchen area to monitor CO levels when cooking with gas. The readings are stable and easy to understand. It adds extra safety without any hassle.