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Portable CO2 Detector and Alarm

Portable CO2 Detector and Alarm - CO2 Meter
Regular price $299.00 Sale price

Compare at $349.00

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The Portable CO2 Detector and Alarm is a handheld gas detector and data logger designed to measure concentrations in real-time with audible indication. 


    • ACCURATE: Precise NDIR technology to measure CO2 concentrations
    • AUDIBLE: Includes Audible Alarm for High CO2 Levels
    • DATA: Included Data Logging with 16GB SD Card
    • RECHARGEABLE: Li-ion rechargeable batteries included for longevity


    This device WILL NOT meet requirements for CO2 safety monitoring that requires a Fixed/Wall mounted, hard-wired alarm per the NBIC, NFPA, or IFC regulations. Refer to our CO2 Safety Products page for devices that meet your needs.

    Call us at (877) 678-4259 toll-free or email us to speak with our technical sales team about purchasing the correct device.


    • Food and Beverage
    • Brewing
    • Agriculture
    • Poultry
    • Scientific
    • Medical
    • Safety, and many others


      • Measures: CO2 (Carbon Dioxide), Temperature, %RH, and Baro
      • Sensing method: NDIR (Non-Dispersive Infrared)
      • CO2 Measurement range: 0~9999 ppm 
      • CO2 Accuracy: ± 50ppm, ± 5% of reading (0~5,000 ppm)
      • Response Time: 1 min
      • Temperature: 0~50°C
      • Power Supply: 3 Rechargeable Batteries - Li-ion 18650 3.7V 
      • Battery Life: Tested to 24+ hours
      • Lifespan: >15 years
      • Dimensions: 204.5 x 91.7 x 49.6 mm (8.1 x 3.6 x 2 inch)
      • Weight: 305g (without batteries)


      • Handheld Multi-Gas Detector
      • Manual
      • USB Charging Cable
      • SD Card (16g), Data Logging Capability
      • Three (3) Li-ion rechargeable batteries


      Software Options

      This device features data logs that are stored to a micro SD Card. The GasLab® Software is not compatible with this device.

      EBL Intelligent Batteries (need 3 for device) provides a fast charge and are upgraded ETL certified to be used with all CM-500 series handheld gas detectors.
      With the EBL Universal Battery Charger, users will be able to charge the lithium batteries when plugged into a USB outlet. The battery charger also provides a clear indication of charge levels, turning green after fully charged.
      CM501 Handheld CO2 Gas Detector
      • Data Sheets

      • Manuals

      • Technical Documents

      • Videos

      • Additional Resources

      • Case Studies

      Customer Reviews

      Based on 9 reviews
      Paul Knerr

      Using for Covid probability analysis

      My short term review is 5 stars

      It works It works well. Fast to respond when testing easy to see numbers.
      It has accurate co2
      It has accurate temp
      It has accurate Humidity.
      The battery Life is good.
      The only thing left is long term life of the meter. Since I have it for 17 days I can not comment on that Maybe I follow up in six months and a year.

      Bud Dietrich

      Carbon Dioxide (CO2) Handheld Gas Detector

      Helpful CO2 Meter

      The CO2 meeter we received is filling our need to help us determine the air exchange in our home and office. It unfortunately only has a 24 hour battery but otherwise seems to be doing what's needed.

      David Ulrich
      CO2 meters

      I've purchased 3 type of CO2 meters from your company and one O2 meter. The simple CO2 meters are wonderful, the O2 meter has a bad charging receptacle and the most recent hand held CO2 meter is difficult to use

      "Easy to install, easy to set up, and easy calibration - just what I was looking for."

      - Phillip Farrar
      Water Plant Superintendent

      Read More Reviews...