Set for measuring the intensity of illumination at jobs, for example, in the office or in the production.The testo 440 Set contains a compact hand-held meter and calibration protocol, a lux-sonde with fixed cable and a matching combination case.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 can be read via a USB-interface and as a CSV file on the computer (e.g. with Excel) can be processed further.In the