Velocity measurement

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.

• 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

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:

• 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 Smart Probes VAC set, you can check air velocities, humidity, volume flows and temperatures in, on and around air conditioning systems. The robust testo Smart Case enables the measuring instruments to be conveniently transported and ensures that they are always to hand when needed.

• Easy parametrization of the outlet/duct cross-section for measuring the volume flow

• List of multiple volume flows and calculation of the total volume flow (in the log)

• Identification of mould risk thanks to the combined utilization of testo 605i and testo 805i

• Rapid image documentation with IR temperature readings and measuring spot marking

Handy and intelligent: the compact testo 510i differential pressure measuring instrument featuring professional measuring technology and smartphone operation for measuring differential pressure, air flow velocity and volume flow. Readings can be viewed conveniently on your smartphone/tablet via the testo Smart Probes App and emailed directly.

• Measurement of gas flow and static pressure

• Measurement menu for pressure drop test including alerts

• Simple configuration and determination of volume flow with Pitot tube

• Magnetic holder for easy attachment

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.

• 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

Vane anemometer with telescopic sensor – ideal for carrying out airflow measurements in air ducts.

• Permanently connected telescopic sensor – maximum length 890 mm, diameter 16 mm

• Airflow measurements, selective and time mean values for calculating air volume

• Hold function; min/max display; auto power off

• Calibration certificate and batteries included

Air flow measurements in ducts, temperature measurements in laboratories, humidity measurements in production, pressure difference measurements in clean rooms. The testo 480 digital temperature, humidity and air flow meter comes with a wide range of optional sensors that allow you to measure, analyse and log these and a variety of other parameters with only one device.

• High-quality optional sensors for measuring air flow, temperature, humidity, pressure, degree of turbulence, heat radiation, CO2, illumination intensity, PMV/PPD and WBGT

• High-precision, integrated pressure sensor included

• Pro-software for easy and efficient analysis and logging included

• Intelligent calibration concept

One tachometer, multiple measurements: The testo 470 tachometer carries out rpm measurements on motors, shafts, fans, etc., but that’s not all. With this handy instrument, you can also determine speeds and lengths (e.g. of conveyor belts and rotors). 

• Simple one-hand operation

• Measurement of rpm, speeds and lengths

• Storage of mean, max. and min. values as well as the last reading 

• Includes accessories such as reflective markers, protective case and transport case

Ideal for rapid measurement at ventilation grilles (air outlets) and for inspecting air conditions – also outdoors: use the testo 410-2 vane anemometer to measure humidity, as well as air velocity and air temperature. Dew point and wet bulb temperature, wind chill or Beaufort wind force: the anemometer can accomplish the calculation of all these parameters at the touch of a button.

• Permanently installed vane with a diameter of 40 mm

• Measurement of air velocity, air temperature and humidity

• Calculates dew point and wet bulb temperature, wind chill and Beaufort wind force

• Includes single-point averaging, max/min and Hold function

The testo 410-1 vane anemometer measures air velocity and air temperature. Use it to carry out quick spot measurements at ventilation grilles (air outlets). The anemometer is also ideal for use outdoors. It displays the units m/s, km/h, fpm, mph and kts, and also calculates wind chill and the Beaufort wind force.

• Vane anemometer with permanently installed 40 mm vane

• Measurement of air velocity and air temperature

• Calculates wind chill and the Beaufort wind force

• Practical: with single-point averaging, max/min and Hold function

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.

• 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

Professional measuring technology in a small format: the compact testo 410i vane anemometer with smartphone operation measures the volume flow, air velocity and temperature at air outlets quickly and reliably. The testo Smart Probes App enables readings to be viewed conveniently and offers intelligent additional functions.

• Measurement of air velocity, volume flow and temperature

• Display of the volume flow of multiple outlets in order to adjust systems

• Easy parametrization of the outlet (dimension and geometry)

• Convenient viewing of readings on a smartphone/tablet with the testo Smart Probes App

Make sure you get the testo 417 vane anemometer with an integrated 100 mm vane, in a set that includes two measurement funnels and other accessories. This will mean you are ideally equipped for volumetric flow measurement at ventilation grilles and poppet valves.

• testo 417 vane anemometer for measuring flow velocity, volumetric flow and temperature

• Attachable measurement funnels make it ideal for volumetric flow measurement at ventilation outlets

• Simple testing of incoming / outgoing air in controlled ventilation of living spaces

• Important accessories included in the set: measurement funnels for poppet valves and ventilation grilles, along with a bag for storage

The testo 435-2 indoor air quality meter allows you to carry out all the measurements that are necessary to check and adjust ventilation and air conditioning systems and assess the quality of the indoor air. Select from a wide range of probes and sensors. Because it’s you know best what your meter needs to be able to do!

• Comprehensive range of measuring functions using optionally available accessories – e.g. anemometers, moisture sensors, lux and degree of turbulence sensors

• Super-size memory for up to 10 000 readings

• Displays dew point difference, min, max and mean values

• PC software for analyzing and logging measuring data

Get the testo 417 vane anemometer with integrated 100 mm vane now, in a set that includes two measurement funnels, a volume flow straightener and other accessories. This ideally equips you to carry out volume flow measurement at plate outlets, ventilation grilles and swirl outlets.

• testo 417 vane anemometer for measuring air flow velocity, volume flow and temperature

• Attachable measurement funnels make this ideal for measuring volume flow at ventilation outlets

• Also suitable for swirl outlets: thanks to the flow straightener, precise measurements can also be taken at swirl outlets

• Important accessories included in the set: measurement funnels, flow straightener and a bag for storage

The testo 831 infrared thermometer allows you to carry out quick and precise temperature measurements of whole pallets of food and smaller products from a distance. Ideal for checking the temperature of incoming goods and for use in food production.

• Non-contact, non-invasive temperature measurements due to IR technology

• Precise temperature measurements also of smaller products and from a distance

• Ultra-fast: two measurements per second – allows you to scan whole pallets in the blink of an eye

• Includes 2-point laser measuring spot marking, 30:1 optics, belt clip, batteries

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.

• Multi-function climate measuring instrument: measure up to 6 measurement parameters at the same time

• Internal reading memory for up to 3,000 readings

• Automatic allocation of the duct cross-section to the measuring location (max. 99 measuring locations)

• Automatic mean value calculation and determination of the volume flow

testo 435 is a series of multi-function climate measuring instruments made by Testo. The testo 435-1 version is the entry-level measuring instrument in this series. You can use this to carry out measurements which you need to adjust ventilation and air conditioning systems and assess air quality. For this we offer you a comprehensive range of optional probes and sensors to choose from.

• You have the option of connecting thermal anemometers and vane anemometers for measuring air velocity and volumetric flow in ventilation ducts

• Air quality: measurement of CO₂, air humidity, air temperature and absolute pressure with the optional IAQ probe

• Display of dew point distance, min., max. and mean values

• Illuminated display

You can use the testo 465 tachometer for quick and easy rpm measurement on rotating parts such as fans and shafts.
 

• Extremely easy one-handed operation

• Saves mean/max./min. values, as well as the last measuring value

• Robust tachometer – thanks in particular to the protective case (SoftCase) supplied

• Includes reflective markers

Make sure you get the testo 420 volume flow hood for larger ceiling outlets and at the same time enjoy multiple maintenance benefits on HVAC systems. Because the flow hood with the removable measuring instrument is not only exceptionally light, it also guarantees accurate volume flow calculations at swirl outlets

• Volume flow hood for larger swirl outlets for measuring volume flow, temperature and relative humidity

• Impressively light with a weight of 2.9 kg

• Precise measurement even at swirl outlets thanks to integrated volume flow straightener

• Fast set-up, convenient operation and protocol creation on site using the App