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Fast-action hot wire probe (Ø 10 mm) – for flow

687.80 Ex. VAT
  • Flow measurement with direction recognition – ideal for an unknown flow axis
  • Probe head diameter: 10 mm
  • Measuring range: 0 to +20 m/s
  • The fast-action hot wire probe (in conjunction with the appropriate measuring instrument) is ideal for determining flow velocity in ventilation ducts or at ceiling and wall outlets.
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Hot ball probe

556.91 Ex. VAT
  • Non-directional flow measurement with an unknown flow direction
  • Integrated temperature measurement and absolute pressure compensation for accurate measurement results
  • Intelligent calibration concept
  • Flow measuring range: 0 to +10 m/s
The hot ball probe (in conjunction with the appropriate measuring instrument) is ideal for determining flow velocity and temperature.Delivery time: 3 – 5 working days
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Hot wire probe (Ø 12 mm) – for flow, temperature and humidity

556.91 Ex. VAT
  • 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
The 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.Delivery time: 3 – 5 working days
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Hot wire probe (Ø 7.5 mm) – for flow and temperature

545.53 Ex. VAT
  • Integrated temperature measurement and absolute pressure compensation for accurate measurement results
  • Probe head diameter: 7.5 mm – ideal for ventilation ducts with small holes
  • Intelligent calibration concept
  • Flow measuring range: 0 to +20 m/s
The hot wire probe (in conjunction with the appropriate measuring instrument) is ideal for determining flow velocity and temperature in ventilation ducts or at plate outlets and ventilation grilles.Delivery time: 3 – 5 working days 
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Hot wire probe (Ø 7.5 mm) – for flow and temperature

307.32 Ex. VAT
  • Very small probe head diameter (7.5 mm) – ideal for measurements in inaccessible places
  • Integrated temperature measurement up to +70 °C
  • With telescope (can be extended to 820 mm)
  • Flow measuring range: 0 to +20 m/s
The hot wire probe (in conjunction with the appropriate measuring instrument) is ideal for determining flow velocity, volume flow and temperature in ventilation ducts or at ventilation outlets.Delivery time: 3 – 5 working days
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Telescopic hot-bulb probe

687.80 Ex. VAT
  • Non-directional flow measurement
  • Integrated temperature measurement
  • Robust (no moving/rotating element, no wear and tear)
  • Flow measuring range: 0 to +10 m/s
The hot ball probe (in conjunction with the appropriate measuring instrument) is ideal for determining flow velocity and temperature in ventilation ducts or at air outlets.Delivery time: 3 – 5 working days
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testo 405 – Thermal Anemometer

117.89 Ex. VAT
  • Measurement of air velocity, volumetric flow and air temperature
  • For measurements in ventilation ducts and in rooms
  • Particularly precise in the range between 0 and 2 m/s
  • Telescope extendible to 300 mm
Use the testo 405 thermal anemometer to measure air velocity, volumetric flow and air temperature. It is suitable for carrying out quick check measurements in ventilation ducts and for measuring the air velocity in rooms, e.g. at draughty windows.Delivery time: 3 – 5 working days
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testo 405i – Bluetooth Thermal Anemometer Smart Probe

93.50 Ex. VAT
  • for measuring volume flow, air velocity and temperature
  • Simple configuration of the dimension and geometry of the duct cross-section for determining the volume flow
  • Convenient for working in ventilation ducts thanks to its telescopic tube, which can be extended up to 400 mm
  • Really convenient to operate thanks to the testo Smart Probes App (e.g. easy viewing of readings, measurement data trend, log function)
With the testo 405i hot wire anemometer, you can measure air velocities, temperatures and volume flows. Via Bluetooth, the readings are transmitted wirelessly straight to the testo Smart Probes App on your smartphone or tablet. You can view the values conveniently and use numerous intelligent features: 
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testo 425 – Compact Thermal Anemometer

414.63 Ex. VAT
  • Temperature and flow measurement as well as volumetric flow calculation
  • Permanently attached extendible telescopic probe – maximum length 820 mm, diameter 7.5 mm
  • With single and multi-point averaging
  • Hold function, display of min/max value, Auto-off function
The functional testing of ventilation and air conditioning systems includes monitoring the flow speed in ventilation ducts. If the air flow velocity and volumetric flow are not set correctly, the room air quality may suffer. The testo 425 thermal anemometer measures the flow speed and automatically calculates the volumetric flow.Delivery time: 3 – 5 working days
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testo 435-4 – Multifunction indoor air quality meter

830.08 Ex. VAT
  • Includes pressure difference sensor for pitot static tube measurements or filter monitoring
  • Further sensors optionally available (eg. anemometer, moisture sensors, lux and degree of turbulence sensors) for a variety of different measuring applications
  • Super-size memory for up to 10 000 measurements
  • PC software for analyzing and logging measuring data
The testo 435-4 multifunction indoor air quality meter allows you to carry out all the measurements you need to inspect and adjust ventilation and air conditioning systems and to check the quality of the indoor air. There is also an integrated pressure difference sensor for pitot static tube measurements and filter monitoring and a wide range of optionally available sensors and probes to choose from.Delivery time: 3 – 5 working days
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testo 440 Air Flow ComboKit 1 with Bluetooth

901.63 Ex. VAT
  • Intuitive: clearly structured measurement menu for volume flow and parallel determination of air velocity, humidity and temperature in ventilation ducts or at ventilation outlets
  • Clever: hot wire probe with telescope (0.85 m) – combine the vane probe (Ø 100 mm) with Bluetooth with the telescope for ceiling outlets or the funnel set for plate outlets (please order separately) as required
  • Convenient: wireless probe, internal data storage and USB port for data export
  • As multifaceted as your challenges themselves: the air velocity and IAQ measuring instrument can be expanded with a large portfolio of digital probes
Delivery time: 3 – 5 working days
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testo 440 Air Flow ComboKit 2 with Bluetooth

949.59 Ex. VAT
  • Intuitive: clearly structured measurement menu for volume flow and determination of air velocity, humidity and temperature in ventilation ducts or at ventilation outlets
  • Clever: vane probe (Ø 16 mm) with telescope (0.85 m) – combine the vane probe (Ø 100 mm) with Bluetooth with the telescope for ceiling outlets or the funnel set for plate outlets (please order separately) as required
  • Convenient: wireless probe, internal data storage and USB port for data export
  • As multifaceted as your challenges themselves: the testo 440 can be expanded with a large portfolio of digital probes
Delivery time: 3 – 5 working days