The 440 Humidity-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 (diameter 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 colour 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 give 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 up to 7,500 measurement protocols may be used 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) and can be processed further.
The handheld meter has practical magnets inside, to secure the device to metal surfaces. Automatic recognition of the probes is available.
The attached humidity/temperature probe can be used with all probe heads. The Bluetooth handle provides for easy measurement and less cable clutter in the bag.
| Type |
Hygrometer |
| Accuracy ± °C |
0.5°C |
| Calibrated to |
Manufacturer's standards (no certificate) |
| Humidity reading accuracy |
2 RH |
| Humidity reading range (max.) |
100 RH |
| Humidity reading range (min.) |
0 RH |
| Max. temperature |
+70°C |
| Min. temperature |
-20°C |
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