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.

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151 products or recommendations for Pressure and air flow
  • testo 510 Set

    testo 510 set - differential pressure measuring instrument

    Order-Nr. 0563 0510

    ZAR 3,784.00
    incl. VAT  ZAR 4,351.60
    • Differential pressure measurement from 0 to 100 hPa 
    • Flow measurement possible with a Pitot tube (available as an option)  
    Details
  • testo 420

    testo 420 - volume flow hood/ balometer

    Order-Nr. 0563 4200

    ZAR 59,243.25
    incl. VAT  ZAR 68,129.74
    • Volume flow hood for larger swirl outlets for measuring volume flow, temperature and relative humidity
    • Impressively light with a weight of 2.9 kg
    Details
  • Basic set testo 324

    Pro set testo 324 - Pressure and leakage measuring instrument

    Order-Nr. 0563 3240 71

    Price on Request
    • All the important measurements in one instrument: tightness test, load test and serviceability test
    • Printer for documentation on site
  • testo 405i

    testo 405 - Thermal anemometer

    Order-Nr. 0560 4053

    ZAR 3,405.60
    incl. VAT  ZAR 3,916.44
    • Measurement of air velocity, volumetric flow and air temperature
    • For measurements in ventilation ducts and in rooms
    Details
  • testo 635-2

    testo 635-2 - Temperature and moisture meter

    Order-Nr. 0563 6352

    ZAR 11,754.05
    incl. VAT  ZAR 13,517.16
    • Optionally available sensors for moisture, temperature, pressure dew point and absolute pressure measurements
    • 2 plug-in sensors and 3 wireless sensors can be connected
  • testo 445

    testo 445 - climate measuring instrument

    Order-Nr. 0560 4450

    • Multi-function climate measuring instrument: measure up to 6 measurement parameters at the same time
    • Internal reading memory for up to 3,000 readings
  • testo 405i German Design Award

    testo 405i - thermal anemometer with smartphone operation

    Order-Nr. 0560 1405

    ZAR 2,956.25
    incl. VAT  ZAR 3,399.69
    • 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
    Details
  • testo 635-2 U-value promo set

    testo 635-2 U-value promo set - thermohygrometer set

    Order-Nr. 0563 6353

    ZAR 28,214.45
    incl. VAT  ZAR 32,446.62
    • Evaluate renovation measures quickly and flawlessly
    • Easy probe attachment, even in inaccessible places
  • testo 410-2

    testo 410-2 - Vane anemometer

    Order-Nr. 0560 4102

    ZAR 4,091.45
    incl. VAT  ZAR 4,705.17
    • Permanently installed vane with a diameter of 30 mm
    • Measurement of air velocity, air temperature and humidity
    Details
  • testo 550i smart kit

    testo 550i Smart Kit - App-controlled digital manifold with wireless clamp temperature probes (NTC)

    Order-Nr. 0564 3550

    ZAR 9,554.60
    incl. VAT  ZAR 10,987.79
    • All activities, from measurement through to documentation, using the App on your Smartphone
    • The smallest digital manifold on the market
    Details
  • testo 550s smart kit

    testo 550s Smart Kit with filling hoses - Smart digital manifold with wireless clamp temperature probes and hose filling set with 3 hoses

    Order-Nr. 0564 5503

    ZAR 12,676.40
    incl. VAT  ZAR 14,577.86
    • All results at a glance thanks to the large graphic display
    • Exceptionally compact and reliable thanks to the easy-to-handle, robust housing with IP 54 protection class
    Details
  • testo 550s smart kit

    testo 550s Smart Kit - Smart digital manifold with wireless clamp temperature probes

    Order-Nr. 0564 5502

    ZAR 11,257.40
    incl. VAT  ZAR 12,946.01
    • All results at a glance thanks to the large graphic display
    • Exceptionally compact and reliable thanks to the easy-to-handle, robust housing with IP 54 protection class
    Details
  • testo 550s basic kit

    testo 550s Basic Kit - Smart digital manifold with fixed cable clamp temperature probes

    Order-Nr. 0564 5501

    ZAR 9,560.51
    incl. VAT  ZAR 10,994.59
    • All results at a glance thanks to the large graphic display
    • Exceptionally compact and reliable thanks to the easy-to-handle, robust housing with IP 54 protection class
    Details
  • testo 557s Smart Vacuum Kit with filling hoses - Smart digital manifold with wireless vacuum and clamp temperature probes and hose filling set with 4 hoses

    Order-Nr. 0564 5572

    ZAR 12,115.00
    incl. VAT  ZAR 13,932.25
    • Completely wireless measurements and all results at a glance: thanks to Bluetooth probes and large graphic display
    • Exceptionally compact and reliable thanks to the easy-to-handle, robust housing with IP 54 protection class
    Details
  • testo 557s smart vacuum kit

    testo 557s Smart Vacuum Kit - Smart digital manifold with wireless vacuum and clamp temperature probes

    Order-Nr. 0564 5571

    ZAR 14,473.80
    incl. VAT  ZAR 16,644.87
    • Completely wireless measurements and all results at a glance: thanks to Bluetooth probes and large graphic display
    • Exceptionally compact and reliable thanks to the easy-to-handle, robust housing with IP 54 protection class
    Details
  • testo Smart Probes AC & Refrigeration Test & Load Kit Plus delivery

    testo Smart Probes AC & refrigeration test kit plus

    Order-Nr. 0563 0002 41

    ZAR 13,078.45
    incl. VAT  ZAR 15,040.22
    • Application-specific measurement menus for superheating/subcooling, target superheat, heating/cooling power
    • More than 90 common refrigerants plus refrigerant updates in the testo Smart App
    Details
  • testo Smart Probes AC & Refrigeration Test Kit delivery

    testo Smart Probes AC & refrigeration test kit

    Order-Nr. 0563 0002 10

    ZAR 7,804.50
    incl. VAT  ZAR 8,975.17
    • Application-specific measurement menus for superheating/subcooling
    • More than 90 common refrigerants plus refrigerant updates in the testo Smart App
    Details
  • testo 552 - Digital vacuum gauge with Bluetooth®

    Order-Nr. 0560 5522

    ZAR 3,565.00
    incl. VAT  ZAR 4,099.75
    • Measurement data monitoring via testo Smart App
    • Measurement data dispatch via testo Smart App
    Details
  • testo 425

    testo 425 - Digital hot wire anemometer with App connection

    Order-Nr. 0563 0425

    ZAR 11,399.30
    incl. VAT  ZAR 13,109.19
    • Simple, fast and precise flow and temperature measurement plus volume flow calculation in the ventilation duct
    • More flexibility for duct measurements with the cable-connected telescopic probe (maximum length 820 mm)
    Details
  • testo Smart Probes HVAC/R Ultimate kit

    testo Smart Probes HVAC/R Ultimate kit

    Order-Nr. 0563 0002 32

    ZAR 24,808.85
    incl. VAT  ZAR 28,530.18
    • For all measurements involving heating, air-conditioning, refrigeration and ventilation systems
    • All Smart Probes for temperature, pressure, humidity and flow in one kit
    Details
  • testo Smart Probes VAC Kit delivery

    testo Smart Probes VAC kit

    Order-Nr. 0563 0003 10

    ZAR 10,287.75
    incl. VAT  ZAR 11,830.91
    • Measurement of air and surface temperature, humidity, air velocity and volume flow
    • Measurement menus for volume flow measurement in ducts and at outlets, identification of mould risk, easy image documentation including IR temperature reading and measurement spot marking
    Details
  • testo 190 P1

    testo 190-P1 - CFR Pressure data logger

    Order-Nr. 0572 1900

    Price on Request
    • High-precision monitoring of absolute pressure in the 1 mbar to 4 barabs range
    • Durable, robust, reliably tight, even after changing the battery
  • testo 191-P1

    testo 191-P1 - HACCP pressure data logger

    Order-Nr. 0572 1916

    Price on Request
    • High-precision monitoring of absolute pressure in the 1 mbar to 4 barabs range
    • Durable, robust, reliably tight, even after changing the battery
  • testo 400 Universal IAQ instrument

    testo 400 - Universal IAQ instrument

    Order-Nr. 0560 0400

    Price on Request
    • Smart, intuitive measurement programs including HVAC grid measurement as per EN ISO 12599 and ASHRAE 111, PMV/PPD and turbulence as per EN ISO 7730 and ASHRAE 55
    • High-precision, location-independent and integrated differential pressure sensor
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