tiny CO2 data logger

CO2 DetectorESCM-39 1% Sensor
ESCM-40 30% Sensor
ESCM-41 100% Sensor

The Probe is designed for students, teachers or indoor greenhouse growers who need a rugged and easy-to-use tethered 0-10,000 ppm (1%), 0-300,000 ppm (30%) or 100% CO2 level meter and data logger. It connects to your PC with a USB cable that both powers the Probe and communicates with our free GasLab® software.

The Probe is perfect for:

  • Students – Science projects
  • Instructors – Teaching aid
  • Researchers – Experimentation
  • Growers – Greenhouse monitoring


probe features
  • Ruggedized enclosure withstands heavy use
  • Integrated USB power cable with heavy strain-relief fitting for long life
  • Small size – will fit in a 2.5in opening.
  • No moving parts
  • Sensor life expectancy – 15 years
  • May be field calibrated to 400 PPM (outdoor air) or 0 PPM (Nitrogen)


GasLab® software

CO2Meter GasLab_grandeThis device uses GasLab® software for setup, calibration, data logging, and real-time data analysis. GasLab® makes it easy to export data into a .CSV file that can be imported into any industry-standard software or spreadsheet. GasLab® runs on Windows XP or higher, and free to use with our products.


electrical / mechanical
  • Includes 6’ (1.8m) USB cable
  • Current Consumption: 5.5 VDC, 40 mA average
  • Size: 3.1×2.4×1.3in (80×60×30mm) (1%, 30% only)
  • COZIR 100% Probe includes 5 VDC power supply


  • 1 year