Pressure and air flow

Pressure plays an important role as a measurement parameter in air conditioning, ventilation and refrigeration technology. Our range of measuring instruments goes from absolute and differential pressure measuring instruments, through digital manifolds, to vacuum gauges and leak detectors. In addition to differential pressure measuring instruments, you can also use our anemometers or multifunction measuring instruments to measure air flow velocity – the latter are also suitable for analyzing indoor air quality.

151 Products or Recomendations for Pressure and air flow
  • testo 510 set - differential pressure measuring instrument

    Order-Nr. 0563 0510

    Differential pressure measurement on gas hot water heaters or on filters of air conditioning systems, and also flow measurements in ventilation ducts using a Pitot tube: the compact testo 510 differential pressure measuring instrument, which comes with a silicone connection hose and other useful accessories, can help you maintain and install systems in the sanitary and HVAC sector.

    • Differential pressure measurement from 0 to 100 hPa 

    • Flow measurement possible with a Pitot tube (available as an option)  

    • Magnets on the rear allow hands-free work 

    • 10 units to choose from, display in pascals can be selected 

    Price on Request
  • testo 557 set - Digital manifold

    Order-Nr. 0563 1557

    The testo 557 digital manifold fulfils numerous functions, which are required for working on refrigeration systems and heat pumps, in just one instrument: for example superheating/subcooling calculation, vacuum measurement, temperature-compensated leakage test. You can also use a practical app to monitor the manifold via your smartphone/tablet and store the measurement results or send them by e-mail.

    • Calculation of superheating and subcooling in real time: no manual calculation, which is prone to error

    • Connect to smartphone/tablet app: remote monitoring and smart measurement documentation

    • Precise external Pirani gauge for vacuum measurement, temperature-compensated leakage test, automatic ambient pressure measurement

    • The 60 most common refrigerants are stored in the instrument, subsequent updates possible (via app)

    Price on Request
  • testo 480 - Digital temperature, humidity and air flow meter

    Order-Nr. 0563 4800

    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

    Price on Request
  • testo 550 - Digital manifold

    Order-Nr. 0563 1550

    The testo 550 digital manifold can now make working on refrigeration systems and heat pumps even easier: the instrument can be used for 60 refrigerants, calculates superheating/subcooling automatically and can now also be connected to a practical smartphone/tablet app. The app makes the operation and the documentation of measurement results significantly more convenient.

    • Automatic superheating/subcooling calculation: no more need for manual calculations, which are prone to error

    • With a practical app: (remote) display, graphical progress display, documentation of readings

    • Temperature-compensated leakage test

    • 60 current refrigerants are included in the manifold (update possible via app)

    Price on Request
  • testo Smart Probes VAC set - with smartphone operation

    Order-Nr. 0563 0003

    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

    Price on Request
  • testo 420 - volume flow hood

    Order-Nr. 0563 4200

    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

    Price on Request
  • testo 417 set 1 - Vane anemometer set

    Order-Nr. 0563 4171

    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

    Price on Request
  • testo 570-2 - Digital manifold gauge

    Order-Nr. 0563 5702

    The testo 570-2 is a digital 4-way manifold gauge that combines the functions of all the old tools and measuring instruments it can so easily replace. The hvac manifold can measure, analyze and log – among other things – pressure, temperature, electricity and vacuum measurements.

    • 40 refrigerants already stored in the meter

    • Simultaneous superheat and subcooling calculation

    • 999 hours of measuring data for logging and further evaluation on your PC

    • Includes 2-clamp temperature sensor, PC software, USB cable, power adaptor and carry case

    Price on Request
  • testo 435-2 - Indoor air quality meter

    Order-Nr. 0563 4352

    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

    Price on Request
  • testo Smart Probes Refrigeration set - with smartphone operation

    Order-Nr. 0563 0002

    The testo Smart Probes Refrigeration set is ideal for carrying out servicing and troubleshooting on air conditioning and refrigeration systems, as well as for installing them. The robust testo Smart Case enables the measuring instruments to be conveniently transported and ensures that they are always to hand when needed.

    • Low refrigerant loss thanks to hose-free application

    • Quick and easy installation directly at the pressure connection

    • Easy refrigerant selection

    • Automatic calculation of the evaporation and condensation temperature via testo Smart Probes App

    Price on Request
  • testo 435-4 - Multifunction indoor air quality meter

    Order-Nr. 0563 4354

    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

    Price on Request
  • testo 417 Set 2 - vane anemometer set

    Order-Nr. 0563 4172

    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

    Price on Request
  • testo 425 - Thermal anemometer with flow probe

    Order-Nr. 0560 4251

    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

    Price on Request
  • testo 416 - Vane anemometer

    Order-Nr. 0560 4160

    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

    Price on Request
  • testo Smart Probes heating set - with smartphone operation

    Order-Nr. 0563 0004

    With the Testo Smart Probes Heating set, you can measure and check all heating system temperatures and pressures in conjunction with your smartphone. The robust testo Smart Case enables the measuring instruments to be conveniently transported and ensures that they are always to hand when needed.

    • Measurement of gas flow and static pressure

    • Non-contact temperature measurement on underfloor heating systems and radiators

    • Measurement menu for pressure drop test, including alerts via testo Smart Probes App

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

    Price on Request
  • testo 405 - Thermal anemometer

    Order-Nr. 0560 4053

    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

    Price on Request
  • testo 445 - climate measuring instrument

    Order-Nr. 0560 4450

    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

    Price on Request
  • testo 405 i - thermal anemometer with smartphone operation

    Order-Nr. 0560 1405

    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)

    Price on Request
  • testo 635-2 - Temperature and moisture meter

    Order-Nr. 0563 6352

    The testo 635-2 temperature and moisture meter allows you to carry out temperature and moisture measurements on a variety of different materials, surfaces and environments. This is made possible due to leading-edge technology and a wide selection of optionally available sensors.

    • Optionally available sensors for moisture, temperature, pressure dew point and absolute pressure measurements

    • 2 plug-in sensors and 3 wireless sensors can be connected

    • Super-size memory for up to 10 000 readings

    • USB cable and PC software for archiving and logging measuring data included

    Price on Request
  • testo 512 - Differential pressure meter for 0…200 hPa

    Order-Nr. 0560 5128

    The testo 512 differential pressure meter is available as four different models. This model has a measuring range from 0…200 hPa and is ideal for measuring pressure differences at filters and for carrying out pitot static tube measurements in air ducts at air flow speeds between 10 and 100 m/s.

    • 8 measurement units to choose from: psi, kPa, hPa, Pa, mm H2O, mmHg, inch H2O, inch Hg

    • 2 air flow units to select from: m/s, fpm

    • Integrated density compensation

    • Backlit display, min/max values, hold function

    Price on Request
151 Products found
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