• CP11
  • Usually ships in 1-2 weeks



  • Range: 0 to 5000ppm CO2, 0.1 to 99.95%RH, -20 to 60°C
  • Accuracy: ±30ppm CO2 ±5% of measured value
    • <2.5%RH (10 to 90%RH), ±0.3°K
  • Measures and logs CO2, relative humidity and temperature
    • 18,000 data point memory
  • Calculates the dew point
  • Non dispersive infrared (NDIR) sensor
    • With automatic baseline correction (ABC)
  • Maximum, minimum and average value display
  • Adjustable audible CO2 alarm
  • Display with backlight
  • Adjustable auto power off function
  • Mini USB interface
  • IP30 protection rating

What's in the Box

  • 4 AA batteries
  • USB cable
  • Software on mini CD
  • Adjustment screwdriver
  • Factory calibration
  • Certificate of factory test


The Rotronic CP11 handheld indoor air quality meter is the latest development of an inexpensive multiple parameter meter that simultaneously measures and records CO2, humidity and temperature. It also calculates the dew point and wet bulb temperature. Equipped with the field-tested ROTRONIC HYGROMER IN-1 humidity sensor, this instrument offers unbeatable value for money. Using the ROTRONIC HW4-Light software that comes with the device, it can be set as required and data can be downloaded, saved and analyzed.

The Rotronic CP11 indoor air quality meter is ideal for general monitoring of indoor air quality as well as monitoring the air in underground car parks and leak monitoring in filling plants.