Measuring indoor air quality and comfort level

Measuring the indoor air quality and comfort level in workplaces makes it possible to precisely adjust the indoor climate and reduces the risk of staff shortages due to illness. These special testo 440 kits measure all the relevant parameters: CO2 concentration in the air, degree of turbulence, temperature, humidity and illuminance.

Would you welcome some advice?

In the online configurator, you can easily put together your own personal combination of measuring instrument, probes and accessories.
  • Intuitive measurement menus
    Clearly structured menus for degree of turbulence and long-term measurement (with freely selectable measuring intervals) are programmed into the measuring instrument.
  • Wireless convenience
    All probes for comfort level and indoor air quality are also available in the wireless Bluetooth variant.
    This means less stress for you and saves space in the measuring case.
  • A comprehensive selection of probes
    For air velocity, CO2, degree of turbulence, humidity and temperature, lux and CO. 
  • Intelligent calibration concept
    Only the probe heads need to be calibrated. You can carry on working with the measuring instrument, handle and another probe.

Your measuring instrument for all comfort level parameters

Because good ideas only flourish when the conditions are right – use the testo 440 to measure these parameters, to create the best possible feel-good climate:

  • Guarantee a cosier ambience
  • Improve indoor air quality
  • Monitor humidity reliably
  • Control lighting more effectively

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Kits for comfort level measurement

testo 440 Indoor Comfort ComboKit
with Bluetooth

testo 440 Indoor Comfort ComboKit with Bluetooth
To the kit
  • testo 440 air velocity & IAQ measuring instrument
  • Turbulence probe (400 mm)
  • CO2 probe with Bluetooth, including temperature and humidity sensor
  • Combi-case for testo 440 and multiple probes

testo 440 CO2 Kit
with Bluetooth

testo 440 CO2 Kit with Bluetooth
To the kit
  • testo 440 air velocity & IAQ measuring instrument
  • CO2 probe with Bluetooth, including temperature and humidity sensor
  • Basic case for testo 440 and 1 probe


 

testo 440 Humidity Kit
with Bluetooth

testo 440 Humidity Kit with Bluetooth
To the kit
  • testo 440 air velocity & IAQ measuring instrument
  • Humidity and temperature probe with Bluetooth
  • Basic case for testo 440 and 1 probe


 

testo 440 Lux Kit

testo 440 Lux Kit
To the kit
  • testo 440 air velocity & IAQ measuring instrument
  • Lux probe
  • Basic case for testo 440 and 1 probe



 

The intuitive measurement menus

The menus programmed into the instrument guide you efficiently through volume flow measurements in ducts and at outlets, K factor and Pitot tube measurements.

All probes for the testo 440

Which probe for which application? Download probe comparison now and find out all about the testo 440 portfolio of probes.

The comprehensive testo 440 brochure

A wealth of product knowledge relating to the testo 440:

  • All probes and accessories
  • Special kits for any application
  • Details on the intuitive measurement menus

Measure comfort level using the testo 440 air velocity & IAQ measuring instrument
Measure CO<sub>2</sub> using the testo 440 air velocity & IAQ measuring instrument
Measure humidity using the testo 440 air velocity & IAQ measuring instrument
Measure illuminance using the testo 440 air velocity & IAQ measuring instrument