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GasLab Plus Multi-Gas Detector

hand-held multi gas monitor
Regular price $799.00 USD

POs or wholesale quantity discounts click here

The GasLab Plus Multi-Gas Detector measures oxygen, carbon dioxide, carbon monoxide, PM 2.5 & PM 10 particle count, relative humidity and temperature. This makes it a valuable tool for measuring internal air quality in the home for people with COPD, emphysema, mesothelioma or other respiratory problems. It is also used for monitoring spore concentrations for mushroom farming.

The display lets the user view all ambient levels in real time or the detector can log the data in internal memory for later analysis. The built-in alarm also makes the detector useful if dangerous gas levels are detected.


  • Measures CO2, CO, O2, PM 2.5, PM 10, RH/T in one device
  • Large LCD display for easy readability
  • Data Logging with interval time setting, removable SD Card
  • Back light for easy readability in the dark
  • Long-life Li-ion rechargeable batteries


      Measurement Range Accuracy Display Resolution
    CO2 0-5,000 ppm (5,001-9,999 ppm over range) ±50 ppm or 5% of reading, whichever is greater 1 ppm
    CO 0-1,000 ppm ±5% to ±10% 1 ppm
    Oxygen 0-25% <2% FS/0.1 mbar 0.01%
    PM2.5 PM10  999 µg/m3 ±15% or ± 15µg/m3, whichever is greater 1 µg/m3
    %RH 0-100% RH ±3% @ 25°C (20-80% RH), others ±5% 0.01%
    Temperature 0-50°C (122°F) ±1°C 0.01°C
    Barometer 50-110 kPa ±0.4 kPa 0.1 mmHg



    • Power Supply: 3 rechargeable Li-ion 18650 3.7V Batteries
    • Battery Life: tested to 24+ hours
    • Communications: RS485 ModBus
    • Alarm 80 db ±5% @ 10cm
    • Weight: 305g (without batteries)


    • CM-505 Multi-Gas Detector
    • Manual
    • 3 Li-Ion Batteries
    • 100-240 VAC Adapter to USB
    • SD Card (16g), for Data Logging


    • 1 Year. See GasLab Terms and Conditions

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    "Swift response and shipment. The product is easy to setup and use. It is just what I was looking for."

    - Shima Tomohiro

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