Testo 535 carbon dioxide meter

The Testo 535 carbon dioxide meter is a measuring instrument ideal for checking indoor air quality and printing the results via an optional infra-red linked printer. Sick Building Syndrome, bad indoor air quality can lead to tiredness, lack of concentration and illness due to high carbon dioxide concentrations (>1000 ppm CO2).
  • Features:
    • Range: 0 to +9999 ppm CO2
    • Resolution: 1ppm CO2
    • Long term monitoring based on maximum and mean calculations.
    • Long term stability via the 2 channel infra-red sensor.
    • High accuracy.
    • Highly efficient.
    • Hold key to freeze the reading
    • Easy to read thanks to large display.
    • TopSafe, protection case, for tough applications (optional).
  • Supplied complete with:
    • Calibration certificate