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Carbon Dioxide (CO2) Data Loggers and Recorders

We offer a wide selection of carbon dioxide data loggers which can be used to monitor and record carbon dioxide levels in any indoor environment. Some also record temperature and other parameters making them an excellent choice for indoor air quality monitoring applications. Wireless carbon dioxide data loggers allow you to access your data remotely without needing to plug the logger directly into a PC. Most feature audible alarms to alert you of increased carbon dioxide levels and some also include outputs which can be used to trigger a process or secondary alerting device.


MicroDAQ.com offers a large selection of loggers ensuring that we probably have multiple options for almost any application. Our Technical Sales Representatives are available by chat, email, or phone and they are always happy to help you find the best solution for your particular application.

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  1. TandD TR-76Ui Carbon Dioxide, Humidity and Temperature  Data Logger

    TR-76Ui

    $499.00

    Indoor Carbon Dioxide Data Logger


    • Measures and Records Carbon Dioxide (CO2), Temperature and Humidity in Indoor Environments
    • 0 to 5,000 ppm (CO2), 0°C to 45°C (Temp) and 10 to 90% RH (Humidity) Measurement Ranges
    • Programmable Alarms and Contact Closure Output
    • Large LCD Display will Cycle Through all Three Measurements
    • Perfect for Air Quality Monitoring and IAQ Auditing

    Includes Sensors, Software, (4) AA Alikaline Batteries, USB Cable and AC Adapter

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  2. Extech CO220 Desktop Air Quality CO2 Monitor

    CO220

    $239.99

    Desktop Air Quality CO2 Monitor


    • Measures Carbon Dioxide (CO2), Air Temperature & Humidity
    • LCD Display Shows Current Levels, Facial Icon Indicating Quality Levels and Date/Time
    • Audible High/Low Alarms, Automatic Baseline Calibration Function
    • Calculates Statistical Weighted Averages, Dew Point and Web Bulb Values
    • Maintenance Free NDIR (Non-Dispersive Infrared) CO2 Sensor

    Includes Sensors (Carbon Dioxide, Temperature and Humidity) and AC Adaptor

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  3. Extech Portable Air Quality CO2 Meter

    CO250

    $409.99

    Portable Indoor Air Quality Meter / Data Logger


    • Checks for CO2 Concentrations in Range of 0 to 5,000ppm
    • Calculates TWA and STEL Statistical Weighted Averages
    • Maintenance Free Non-Dispersive Infrared (NDIR) CO2 Sensor
    • User Programmable Audible Alarm, Backlit Triple LCD Display
    • Built-in RS-232 Interface for Logging Data to PC

    Includes Software, RS232 Cable and Batteries

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  4. TandD RTR-576-S High Precision, Wide Range CO2, Temp, Humidity Logger

    RTR-576-S

    $699.00

    Wireless High Precision Carbon Dioxide, Humidity and Temperature Data Logger


    • Simultaneously Measure and Record Carbon Dioxide, Humidity and Temperature Readings
    • Measurement Range of 0 to 9,999ppm (CO2); 0% to 99% RH (Humidity) and -25°C to 70°C (Temp)
    • Stores 8,000 Data Samples Between Wireless Transmissions to Base Collector or Repeater
    • 150 Meters Line of Sight Transmission Range Between Devices (Logger to Base Collector or Repeaters)
    • Automatic Transmission of Data (Current or Logged) at Set Interval to Base Collector or Repeater

    Includes Logger, (4) AA Alkaline Battery, External Temp/RH Sensor, AC Adapter, USB Cable and User Manual

    A Complete System Requires a Base Collector (RTR-500DC, RTR-500GSM, RTR-500NW or RTR-500AW) and a RTR-500 Series Wireless Data Logger

    Wireless Notice and Disclaimer
    The use of Radio Frequency products is tightly regulated by local laws. Wireless products sold by MicroDAQ.com Ltd. are approved for use in the U.S. and Canada, but may not be in other countries. It is the sole responsibility of our customers to insure that the local use of wireless products purchased on this site is in full compliance with all local laws and regulations. MicroDAQ.com Ltd., and the manufacturers it represents will not accept any responsibility for the use of unapproved wireless product in other countries.

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  5. TandD TR-76Ui-S Carbon Dioxide, Humidity and Temperature  Data Logger

    TR-76UI-S

    $599.00

    Carbon Dioxide Data Logger with Wide Temperature and RH Range


    • Measures and Records Carbon Dioxide (CO2), Temperature and Humidity in Indoor Environments
    • 0 to 5,000 ppm (CO2), -25°C to 70°C (Temp) and 0 to 99% RH (Humidity) Measurement Ranges
    • Programmable Alarms and Contact Closure Output
    • Large LCD Display will Cycle Through all Three Measurements
    • Perfect for Air Quality Monitoring and IAQ Auditing

    Includes Sensors, Software, (4) AA Alkaline Batteries, USB Cable and AC Adapter

    Learn More | Add to Compare
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MicroDAQ.com offers a wide selection of carbon dioxide monitors with data logging capabilities. The CO2 data logging devices can be stand alone or with the ability to also measure other environmental parameters using wireless or Wifi.