Absolute 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.

34 products or recommendations for Absolute pressure
  • testo 511 - Pocket-sized absolute pressure measuring instrument

    Order-Nr. 0560 0511

    Small, handy, and practical, the testo 511 absolute pressure meter is also suitable for measuring the barometric altitude between two points.
    • High-precision absolute pressure measurement, with an accuracy of ±3 hPa

    • Suitable for barometric altitude measurements

    • Calculates barometric air pressure

    • 8 pressure units available, including Pa, hPa, mbar, mmHg, mmH2O, inHg, inH2O, and psi

    $ 197.10
    excl. tax
  • 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

    • Accurate, simultaneous superheat / subcooling measurements

    • Rugged housing with additional one year warranty (w/ registration)

    • Live data feed integration now available with the MeasureQuick App.

  • 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

    • Large 2-line backlit display

    • Rugged housing with additional one year warranty (with registration)

    • Live data feed integration now available with the MeasureQuick App.

  • testo 552 - Digital vacuum / micron gauge with Bluetooth

    Order-Nr. 0560 5522

    The testo 552 digital micron gauge is ideal for monitoring the evacuation of air conditioning, refrigeration, and heat pump systems. It is rich in features that make your work faster, easier, and more accurate.
    • Precise and reliable vacuum measurements, 1 micron resolution

    • Displays the saturation temperature of H2O to ensure full and proper evacuation

    • Illuminated, backlit display with visual alarm for evacuation pressure

    • Wireless Bluetooth communication to smartphone or tablet provides powerful analysis and reporting to display data, create reports, and send via email or SMS

  • testo Smart Probes AC & refrigeration test kit

    Order-Nr. 0563 0002 20

    For refrigeration engineers: Compact kit containing testo 549i high-pressure gauge and testo 115i clamp thermometer (two of each). Used in conjunction with your smartphone/tablet, the kit is ideal for servicing, troubleshooting and installing air conditioning and refrigeration systems. The testo Smart Probes App makes your work easier and more efficient: over 90 stored refrigerants, automatic calculation of superheating/subcooling, emailing of measurement data reports as PDF or Excel documents.
    • Application-specific measurement menus for superheating/subcooling

    • More than 90 common refrigerants plus refrigerant updates in the testo Smart Probes App

    • 350 ft Bluetooth® range for particularly flexible applications

    • Live data feed integration now available with the MeasureQuick App

  • 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

    • Temperature-compensated leakage test

    • Live data feed integration now available with the MeasureQuick App.

  • 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

    • Temperature-compensated leakage test and automatic ambient pressure measurement

    • Live data feed integration now available with the MeasureQuick App.

  • testo Smart Probes AC & Refrigeration Test & Load kit

    Order-Nr. 0563 0009

    For refrigeration engineers: The kit contains two testo 549i high-pressure gauges, two testo 605i thermohygrometers and two testo 115i clamp thermometers. Used in conjunction with your smartphone/tablet, the kit is ideal for servicing, troubleshooting and installing air conditioning and refrigeration systems. The testo Smart Probes App makes your work easier and more efficient: over 90 stored refrigerants, automatic calculation of superheating/subcooling, target superheat and cooling/heating load, emailing of measurement data reports as PDF or Excel files.
    • Application-specific measurement menus for superheating/subcooling, target superheat, heating/cooling power

    • More than 90 common refrigerants plus refrigerant updates in the testo Smart Probes App

    • 350 ft Bluetooth® range for particularly flexible applications

    • Live data feed integration now available with the MeasureQuick App

  • testo 549 - Digital manifold

    Order-Nr. 0560 0550

    The testo 549 digital manifold is a breakthrough value, making analog gauges obsolete. It precisely measures high side / low side pressure and instantly displays the corresponding saturation / evaporation temperatures for 60 refrigerants. With optional temperature probes, automatic superheat and sub-cooling calculations can also be displayed.
    • 60 refrigerant profiles stored in the instrument

    • Rugged housing with additional one year warranty (with registration)

    • Large 2-line backlit display

    • Digital accuracy performs more reliably than analog manifold gauge sets for more precise readings

  • testo 191-P1 - HACCP pressure data logger

    Order-Nr. 0572 1916

    Use the testo 191-P1 HACCP pressure data logger, which is certified by HACCP International, for efficient monitoring of pasteurization and sterilization processes. Designed for food production, the testo 191-P1 is ideally suited for efficient saturated steam pressure testing in pasteurization and sterilization processes.
    • High-precision monitoring of absolute pressure in the 1 mbar to 4 barabs range

    • Durable, robust, reliably tight, even after changing the battery

    • Changing the battery takes just seconds, saving time and increasing efficiency

    • Simultaneous programming and readout of several HACCP data loggers via the multifunction case

  • testo 190-P1 - CFR Pressure data logger

    Order-Nr. 0572 1900

    Use the testo 190-P1 CFR pressure data logger for efficient monitoring of sterilization and freeze-drying processes. Designed for the pharmaceutical industry, the testo 190-P1 CFR data logger is ideally suited for tightness or overpressure testing in autoclaves and freeze-drying systems.
    • High-precision monitoring of absolute pressure in the 1 mbar to 4 barabs range

    • Durable, robust, reliably tight, even after changing the battery

    • Changing the battery takes just seconds, saving time and increasing efficiency

    • Simultaneous programming and readout of several CFR data loggers via the multifunction case

  • testo 622 - Thermohygrometer and barometer

    Order-Nr. 0560 6220

    The testo 622 thermohygrometer and barometer is designed to provide you with an at-a-glance look at the air temperature, pressure, and RH. Ideal for monitoring the ambient air, especially in laboratories during calibration and experimental setups.
    • Measures air temperature / pressure / RH

    • Ideal for monitoring the air, especially in laboratories

    • Alarm alerts when threshold is exceeded

    • Table or wall mount

  • testo 549i - High-pressure gauge operated via smartphone

    Order-Nr. 0560 2549 03

    The professional and compact testo 549i high-pressure gauge with 45 degree connector can be controlled via the testo Smart Probes App using your smartphone or tablet, and is ideal for carrying out servicing and troubleshooting on air conditioning and refrigeration systems. The App also enables evaporation and condensation temperatures to be calculated automatically.
    • Measurement of high and low pressure

    • Low refrigerant loss – since no hoses are required for measurements

    • Live data feed integration now available with the MeasureQuick App

    • Problem-free application at measuring points that are a long distance apart thanks to Bluetooth® range up to 350 ft

  • testo 635-2 - Temperature and moisture meter

    Order-Nr. 0563 6352

    The testo 635-2 temperature and moisture meter measures the temperature and moisture of different types of materials, surfaces, and environments, with a wide range of optional sensors.
    • Optional sensors for moisture / temperature / pressure dew point / absolute pressure measurements

    • 2 plug-in and 3 wireless sensors

    • Super-size memory for up to 10,000 readings

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

  • testo 635-1 - Humidity measuring instrument

    Order-Nr. 0560 6351

    The testo 635-1 temperature and humidity measuring instrument enables you to measure the temperature, air humidity, and dew point – in compressed air as well. State of the art technology and a large selection of probes, which are available optionally, allow for a wide variety of measuring possibilities.
    • Probes available as an option mean you can measure air humidity, temperature, absolute pressure, and dew point in compressed air

    • Measures air moisture, material equilibrium moisture, pressure dew point

    • Calculates dew point and dew point distance

    • Cyclical printing of readings once a minute, for example

  • 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

  • testo 176P1 - Five-channel pressure, temperature, and RH data logger

    Order-Nr. 0572 1767

    The testo 176P1 pressure, temperature, and humidity measurement logger has a large display that makes it easy to read. The 176P1 is an ideal pressure, temperature, and RH data logger for the highly accurate and secure documentation of conditions in a laboratory, enviro chamber, clean room, or hospital control area. Creation of Excel Spreadsheets, PDFs, and data analysis are all easily achieved with the free, downloadable ComSoft software.
    • Pressure, temperature, and humidity measurements

    • Internal pressure and external temperature and humidity probes for quick, highly accurate measurements

    • Large, easy to read, backlit display

    • Large data memory capable of storing 2,000,000 measurements

  • Comfort level probe

    Order-Nr. 0628 0143

    Comfort level probe
    • Turbulence measurement in accordance with EN 13779

    • Determination of air velocity and draught risk

    • Integrated temperature and ambient pressure measurement

    • Intelligent calibration concept

  • ComSoft Professional 4 - software

    Order-Nr. 0554 1704

    ComSoft Professional 4 - Alternate Part Number: 0554 1704
    • Professional software for programming and readout of Testo data loggers and for archiving data

    • Graphic and tabular display of all measurement parameters

    • Effortless creation and management of reports

    • Intuitive user interface for efficient work

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