Set for the measurement of CO2 concentration, humidity as well as the air temperature and for the assessment of ambient air quality in offices, production rooms or in the warehouse. The testo 440 Set contains a climate meter testo 440 as well as the COprobe with Bluetooth incl. temperature and humidity sensor. To Set a suitable combination case included.The meter has a large, illuminated color display and has a structured measurement menu by pressing and specific temporal averaging, average volume flow, current measured value, as well as min/max values are displayed. You can also dimension and geometry of the channel cross-section must be entered to calculate an exact calculation of the volume flow. Other measurement menus as long-term measurement and volume flow measurement with funnel are also possible.The testo 440 meter collects and evaluates your measurement data and may be used up to 7,500 measurement protocols in its integrated measurement data memory. Measurement protocols ca