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 +20 m/s and can also be used at high temperatures of up to +350 &deg;C.

The vane probe (in conjunction with the appropriate measuring instrument) is ideal for determining flow velocity and volume flow in ventilation ducts. It can also be used at high temperatures of up to +350 &deg;C.

Vane probe (Ø 25 mm) for ventilation ducts 

High temperature vane probe, Ø 25 mm, with handle for contin...

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HQ instrument 

Measuring range	+0,6 to +20 m/s
Accuracy	±(0,3 m/s + 1,0 % of fsv)

Length probe shaft	560 mm
Probe head diameter	25 mm

kompetenca@optimum

Vane probe (Ø 25 mm) - can be used at high temperatures

Vane probe (Ø 25 mm) - can be used at high temperatures

Temperature - TC Type K (NiCr-Ni)

Velocity / Volume flow

General technical data