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Testo Hot Wire Probe (Ø12 mm)

Flow, temperature and humidity probe
£562.80 £469.00

Availability: Available to Order

Product Code

The Testo Hot Wire Probe (in conjunction with the appropriate measuring instrument) is ideal for determining flow velocity as well as temperature and humidity in ventilation ducts or at ventilation outlets.

Key Features:

  • 3 functions in 1 probe: measurement of flow, temperature and humidity
  • Probe head diameter: 12 mm – also suitable for measurements in ventilation ducts
  • With telescope (can be extended to 745 mm)
  • Flow measuring range: 0 to +20 m/s

More Information
Manufacturer Part Number0635 1535
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Temperature - NTC

Measuring range

-20 to +70 °C


±0.3 °C

Humidity - Capacitive

Measuring range

0 to +100 %RH


±2 %RH (+2 to +98 %RH)

Velocity - Hot wire

Measuring range

0 to +20 m/s


±(0.03 m/s + 4 % of mv)

General technical data

Cable length

0.8 m

Length telescope

745 mm

Probe head diameter

12 mm

Hot wire probe (Ø 12 mm) with telescope (can be extended to 745 mm) including fixed cable 0.8 m.