The 440 Feuchte-Set is suitable for measurements in storage, cooling and work rooms, in ventilation ducts as well as for refrigeration systems and heat pumps.The testo 440 Set contains a compact hand-held meter, a humidity temperature probe (Ã 12 mm) with Bluetooth* (consisting of humidity and temperature probe head and bluetooth the handle). The testo 440 hand-held measuring device is supplied with batteries and is ready for use immediately! 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 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 handheld meter are practical magnets to secure the device to metal surfaces (e.g. flow channel) are integrated. Automatic recognition of the probes, is available.The attached humidity/temperature probe can be used with all probe heads. The Bluetooth handle provides for more comfort for your measurement and less cable clutter in the bag! This text is machine translated.