Product-Specific Information; Intended Use - TESTO 425 Instruction Manual

Product-specific information


Do not carry out measurements on live components.

Do not expose handles and feed lines to temperatures in excess of 70°C
unless they are expressly approved for higher temperatures. Temperature
specifications on probes/sensors refer only to the measuring range of the
sensor system.

Only open the measuring instrument if this is expressly described in the
documentation for the purposes of maintenance or servicing.

Intended use

The testo 425 is a compact instrument for measuring flow velocities and
temperatures by means of a permanently connected flow/temperature probe
(hot wire probe).
The product is designed for the following tasks/areas:

Volume flow measurements in ducts

Measuring flow velocities in rooms

Temperature measurement of flows
The product should not be used in the following areas:

In potentially explosive atmospheres.

For diagnostic measurements in the medical field.
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