Description
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Testo 425 is a compact anamometer with a fixed thermal flow velocity probe. With the extendable telescope (length max. 820
mm), the measuring instrument is suitable for flow velocity measurement in ducts. The testo 425 also measures extremely accurately in the low flow velocity range.
The volume flow is directly shown in the display. For the purposes of volume flow calculation, the duct area can be
easily entered into the testo 425.
https://www.testo.com/en-UK/testo-425/p/0560-4251
Manual_Testo425_Anemometer