Carbon Dioxide (CO2) and Carbon Monoxide (CO) Handheld Gas Detector

Carbon Dioxide (CO2) and Carbon Monoxide (CO) Handheld Gas Detector
Regular price $499.00

POs or wholesale quantity discounts click here

The GasLab Plus CM-504 is a Multi-Gas Detector designed to measure carbon dioxide (CO2) and carbon monoxide (CO) concentrations in a variety of applications.

    With long-term data storage, the user can measure ambient gas levels by data displayed and gain indication by visual and audible alarm settings.


    • NDIR/EC technology to measure CO2 and CO concentrations
    • CO2, CO, PM2.5, PM10,
    • Large LCD display for easy readability 
    • Audible Alarm
    • Data Logging with 16GB SD Card
    • Multiple Connected Units by RS485 interface
    • LCD Backlight for easy readability by dark
    • Li-ion rechargeable batteries


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


      • Measures: CO2, CO, PM2.5, PM10
      • Sensing method: NDIR and EC
      • CO2 Measurement range: 0~9999 ppm
      • CO Measurement range: 0~1,000 ppm
      • PM2.5,10 Measurement range: 999 ug/m3
      • Temperature: 0~50°C,±1℃
      • CO2 Accuracy: ± 50ppm, ± 5% of reading (0~5,000 ppm)
      • CO Accuracy: ±5%~±10%
      • PM2.5,10 Accuracy: ±15% or ±15 μg/m³ (whichever is greater)
      • Power Supply: Rechargeable Battery - Li-ion 18650 3.7V 
      • Battery Life: tested to 24+ hours
      • Life Span: NDIR: up to 15 years, EC: 1 year
      • Weight: 305g (without batteries)


      • CO2, CO, PM2.5, PM10 Gas Detector
      • Manual
      • USB Charging Cable
      • SD Card (16g), Data Logging Capability


      • 1 year - See CO2Meter Terms and Conditions.

      BAT-18650 - EBL 18650 3.7V Li-ion Rechargeable Batteries

      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.

      CM504 Handheld CO and CO2 Gas Detector

      Customer Reviews

      No reviews yet

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

      - Phillip Farrar
      Water Plant Superintendent

      Read More Reviews...