You can keep a close eye on indoor air quality with the testo 445 climate measuring instrument: the allrounder can measure up to 6 parameters (with the appropriate probe), which can help you make a professional assessment of indoor air quality. The climate measuring instrument therefore supports you in adjusting and checking ventilation and air conditioning systems.

Use the 25 mm vane probe to determine flow velocity and volume flow in ventilation ducts. It is particularly suitable for flow velocities of up to +40 m/s.

<span style="display:none">&nbsp;</span>Vane/temperature probe, &Oslash; 25 mm, can be attached to 0430 3545 handle or 0430 0941 telescopic handle<span style="display:none">&nbsp;</span>

Vane probe (Ø 25 mm) for measuring flow in ducts 

Vane/temperature probe, Ø 25 mm, can be attached to 0430 354...

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HQ instrument 

General technical data	Length 180 mm
General technical data	Diameter 25 mm

Temperature - TC Type K (NiCr-Ni)	Measuring range −30 to +140 °C
Temperature - TC Type K (NiCr-Ni)	Accuracy Class 1

Velocity / Volume flow	Measuring range +0,6 to +40 m/s
Velocity / Volume flow	Accuracy ±(0,2 m/s + 1 % of mv) (+0,6 to +40 m/s

kompetenca@optimum

Vane probe (Ø 25 mm) - for measuring flow in ducts

Vane probe (Ø 25 mm) - for measuring flow in ducts

General technical data

General technical data

Temperature - TC Type K (NiCr-Ni)

Temperature - TC Type K (NiCr-Ni)

Velocity / Volume flow

Velocity / Volume flow

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