Differential pressure

Alongside temperature, the physical measurement parameter of pressure is one of the most important and most measured parameters for applications in research and engineering. A large number of measuring tasks have become indispensable for a wide range of applications in heating, sanitation and air-conditioning sectors, in process engineering and in many other areas.

67 products or recommendations for Differential pressure
  • testo 512 - Pressure and flow velocity measuring instrument 0 to 2000 hPa

    Order-Nr. 0560 5129

    The testo 512 differential pressure measuring instrument is available in four different versions. This version is ideal for differential pressure measurement in the measuring range of 0 to 800 inH2O (0 to 2000 hPa).

    • 7 pressure units to choose from: psi, kPa, hPa, mmH2O, mmHg, inH2O, inHg

    • Large measuring range up to 2000 hPa

    • TopSafe protective case (optional) protects against impact, dirt, and spray water

    • Backlit display / min and max values / hold function

  • testo 512 - Pressure and flow velocity measuring instrument 0 to 2 hPa

    Order-Nr. 0560 5126

    The testo 512 differential pressure meter is available in 4 different models. This model has a measuring range of 0 to 0.80 inH2O (0 to 2 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 2 and 17.5 m/s.

    • 8 measurement units to choose from: psi, kPa, hPa, Pa, mmH2O, mmHg, inH2O, inHg

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

    • Integrated density compensation

    • Backlit display / min and max values / hold function

  • testo 521-2 - Differential pressure measuring instrument 0 to 100 hPa (accuracy ±0.1% of f.v.)

    Order-Nr. 0560 5211

    The high precision testo 521-2 differential pressure measuring instrument is ideal for accurate differential pressure measurements in air conditioning and ventilation technology, for pressure drop on filters, for instance, checking fans and extractors, or for pitot tube measurements.

    • Integrated differential pressure sensor with an accuracy of 0.1% of f.v.

    • Calculation of flow velocity and volume flow via pitot tube (optional)

    • Multi-point and timed mean calculation

    • 2 probe inputs for additional pressure and temperature probes

  • testo 521-1 - Differential pressure measuring instrument 0 to 100 hPa (accuracy ±0.2% of f.v.)

    Order-Nr. 0560 5210

    The high precision testo 521-1 differential pressure measuring instrument is ideal for accurate differential pressure measurements in air conditioning and ventilation technology, for pressure drop on filters, for instance, for checking fans and extractors, or for pitot tube measurements.

    • Integrated differential pressure sensor with an accuracy of 0.2 % of f.v.

    • Calculation of the flow velocity and the volume flow via Pitot tube (optional)

    • Multi-point and timed mean calculation

    • 2 probe inputs for additional pressure and temperature probes

  • testo 512 - Pressure and flow velocity measuring instrument 0 to 200 hPa

    Order-Nr. 0560 5128

    The testo 512 differential pressure meter is available in four different models. This model has a measuring range of 0 to 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, mmH2O, mmHg, inH2O, inHg

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

    • Integrated density compensation

    • Backlit display / min and max values / hold function

  • Basic set testo 312-4

    Order-Nr. 0563 1327

    Differential pressure gauge testo 312-4

    Hose set for testo 312-4

    Balloon pump with release screw

    Conical test plug 1/2"

    Conical test plug 3/4"

    IR report printer

    Pressure set for gas pressure measurements on heating systems

    System case

  • testo 312-3 - Pressure measuring instrument up to 300/6000 hPa

    Order-Nr. 0632 0314

    testo 312-3, robust manometer up to 300/6000 hPa, DVGW approval, incl. alarm display, battery and calibration protocol

    • Load and tightness tests of gas pipes

    • Pressure testing of water pipes using air

    • Switchable measuring ranges with high resolution

    • Alarm indicator for undershooting of freely adjustable limit values

  • testo 521-3 - Differential pressure measuring instrument 0 to 2.5 hPa

    Order-Nr. 0560 5213

    The testo 521-3 high precision differential pressure measuring instrument easily determines even the smallest differential pressures (up to +2.5 hPa). Its high accuracy and a resolution of 0.1 Pa make the instrument ideal for differential pressure measurements, in clean rooms, or for flue inspections.

    • Integrated temperature-compensated differential pressure sensor with accuracy of up to ± 0.5 Pa

    • Calculation of the flow velocity and the volume flow via Pitot tube (optional)

    • Direct zeroing of the display values of pressure probes

    • 2 probe inputs for additional pressure and temperature probes
       

  • testo 512 - Differential pressure meter

    Order-Nr. 0560 5127

    The testo 512 differential pressure meter is available in four models. This model has a measuring range of 0 to 0.29 psi, 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 16 and 180 fps.

    • 8 measurement units to choose from: psi, kPa, hPa, Pa, mmH2O, mmHg, inH2O, inHg

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

    • Integrated density compensation

    • Backlit display / min and max values / hold function

  • testo 445 - Service instrument for air conditioning / ventilation systems

    Order-Nr. 0560 4450

    You can keep a close eye on indoor air quality with the testo 445 climate measuring instrument; this versatile tool can measure up to 6 parameters (with the appropriate probe), which can help you make a professional assessment of indoor air quality. This climate measuring instrument 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

  • High-pressure set testo 312-4

    Order-Nr. 0563 1328

    Differential pressure gauge testo 312-4

    Hose set for testo 312-4

    Balloon pump with release screw

    Conical test plug 1/2"

    Conical test plug 3/4"

    IR report printer

    Pressure set for gas pressure measurements on heating systems

    High-pressure plug 3/8" and 3/4"

    High-pressure plug 1/2" and 1"

    High-pressure probe 1up to 5 bar

    System case

  • testo 550 digital manifold kit - with Bluetooth® and set of 3 hoses

    Order-Nr. 0563 2550

    The complete kit for work on air conditioning and refrigeration systems, as well as on heat pumps: the testo 550 digital manifold, including a set of 3 hoses. This kit enables you to get down to work right away! The instrument can be used for 60 refrigerants, automatically calculating superheating/subcooling and can be connected to your smartphone/tablet via the testo refrigeration App. You can also use the powerful testo Refrigeration App to monitor the manifold via your smartphone/tablet and to store the measurement results or send them by e-mail as a complete report.

    • Complete Kit: set of 3 hoses, 2 x pipe clamp temperature probes and transport case

    • Automatic calculation of superheating/subcooling for 60 refrigerants: no hassle of manual calculations

    • Connection to smartphone/tablet Refrigeration App: remote monitoring, measurement documentation and refrigerant updates

    • Temperature-compensated leakage test

  • testo 550 - Digital manifold kit with Bluetooth

    Order-Nr. 0563 1550

    The testo 550 instantly displays superheat and subcooling for up to 60 refrigerants. It also measures high / low side pressures and temperatures. With its free Bluetooth linked app, the testo 550 opens up new possibilities for efficient analysis and documentation.

    • Includes two temperature clamp probes (two channel NTC temperature inputs) and service case

    • Bluetooth / app integration for monitoring, generating reports, and sending reports and invoices via email

    • Large 2-line backlit display

    • Rugged housing with 5 year warranty with registration for reliable service

  • testo 557 digital manifold kit - with Bluetooth® and set of 4 hoses

    Order-Nr. 0563 2557

    The complete kit for work on air conditioning and refrigeration systems, as well as on heat pumps: the testo 557 digital manifold, including a set of 4 hoses! This kit enables you to get down to work straight away! The testo 557 digital manifold fulfils numerous functions in just one instrument: including superheating/subcooling calculation, vacuum measurement and temperature-compensated leakage test. You can also use the powerful testo Refrigeration App to monitor the manifold via your smartphone/tablet and to store the measurement results or send them by e-mail as a complete report.

    • Complete kit: set of 4 hoses, 2 x pipe clamp temperature probes, precise external Pirani gauge for vacuum measurement and transport case

    • Automatic calculation of superheating and subcooling in real time for 60+ refrigerants: no hassle of manual calculations

    • Connection to smartphone/tablet App: remote monitoring, measurement documentation and refrigerant updates

    • Temperature-compensated leakage test and automatic ambient pressure measurement

  • testo 557 - 4-Valve digital manifold kit with Bluetooth and external vacuum gauge

    Order-Nr. 0563 1557

    The testo 557 4-valve digital manifold with 3/8 in. and 1/4 in. vacuum ports comes with a remote vacuum probe for faster and more reliable evacuations, Bluetooth, app connectivity, two clamp temperature probes for instantaneous superheat / subcooling readings, and a convenient service case.

    • External vacuum probe for faster and more reliable system evacuation

    • Bluetooth / app integration for monitoring, report generation, and sending reports and invoices via email

    • Accurate, simultaneous superheat / subcooling measurements

    • Rugged housing with 5 year warranty (upon registration) for reliable testing

  • testo 510 - Digital manometer

    Order-Nr. 0563 0510

    With the testo 510, performing system tests has never been easier using our single, easy to use, rugged, compact digital manometer. Its small form factor, bright backlit display, and magnetic backing will enable the 510 to be used in a wide variety of applications.

    • Temperature and air density compensation for accurate airflow measurements

    • Measures differential pressure to 40 in. H2O

    • Backlit display ensures easy readability in low light situations

    • Temperature compensated pressure sensor

  • testo Smart Probes AC & refrigeration test kit - with smartphone operation

    Order-Nr. 0563 0002 02

    The testo Smart Probes AC / Refrigeration test kit is ideally suited for testing air conditioning and refrigeration systems and installing them. The large testo HVAC softcase enables the measuring instruments to be conveniently transported and ensures that they are always to hand when they are needed.

    • Fast and simple installation of the testo 549i high-pressure measuring instrument directly onto the pressure connection

    • Low refrigerant loss thanks to hoseless application

    • Automatic calculation of evaporation and condensation temperatures and simple selection from more than 90 refrigerants via testo Smart Probes App

    • Large testo HVAC softcase: store additional testo Smart Probes for further applications in the heating, air conditioning and ventilation field safely

  • testo Smart Probes Refrigeration Set - Wireless Smart Probe Kit

    Order-Nr. 0563 0002

    The testo AC/R Smart Probe Set is a combination of four instruments that measure high-side and low-side pressures and temperatures of A/C and refrigeration systems.  Configured to be used during the commissioning, servicing, PM, and troubleshooting of A/C and refrigeration systems.  This kit can be operated without the need for any other tools, besides your smartphone to communicate with the instruments.

    • Simultaneously measures high-side and low-side refrigerant pressure and temperatures of AC and refrigeration systems

    • Low-loss AC/R system checks, with no hoses required!

    • Compact wireless AC/R test kit

    • Calculates superheat and subcooling in the Smart Probes app

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