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.

31 Products found
  • testo 549 i - Refrigeration Pressure Smart Probe

    Order-Nr. 0560 1549

    The testo 549i Smart Probe is a hoseless, wireless pressure probe for measuring refrigerant charge in AC/refrigeration systems. It is used for servicing, troubleshooting, and documenting the operation of residential or commercial AC/refrigeration systems. When two 549i are used in conjunction with two 115i pipe-clamp temperature probes, it is easy to monitor superheat and sub-cooling in AC/refrigeration systems.

    • Measures high-side or low-side refrigerant pressure (or both simultaneously with 2 probes) in AC/refrigeration systems

    • No hoses required - clean, simple, accurate

    • Low-loss refrigerant pressure testing!

    • Use with 115i pipe-clamp temperature probes for automatic superheat / sub-cooling calculations

  • 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 smart phone or tablet provides powerful analysis and reporting to display data, create reports, and send via email or SMS

  • testo 557 - 4 Valve Digital manifold kit with Bluetooth and Ext. Vacuum Gauge

    Order-Nr. 0563 1557

    The testo 557 4-valve with 3/8 vacuum port digital manifold comes with a remote vacuum probe for faster and more reliable evacuations, Bluetooth App, two clamp temperature probes for instantaneous superheat / sub-cooling readings, and 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 / sub-cooling measurements

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

  • testo 511 - Pocket-sized abolute 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 the barometric air pressure

    • 8 pressure units available
       

  • testo 550 - Digital manifold kit with Bluetooth

    Order-Nr. 0563 1550

    The testo 550 instantly displays superheat and sub-cooling 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, report generation, and sending reports and invoices via email

    • Large 2-line backlit display

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

  • testo 435-4 - Multifunction meter w/ memory, software, and differential pressure

    Order-Nr. 0563 4354

    The testo 435-4 multifunction meter is perfect for monitoring, analyzing, and diagnosing indoor air quality, wherever you need to take important IAQ measurements. In addition, you can easily pinpoint and troubleshoot problems with HVAC systems, and immediately see the results of corrections. Commissioning, validating, benchmarking, or simpy adjusting HVAC systems are all easy with the testo 435-4.

    • Integrated differential pressure measurements for flow velocity

    • Optional wireless (RF) temperature and humidity probes for remote measurement

    • Backlit LCD for easy viewing

    • Built-in memory stores up to 10,000 measurements

  • 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 design and housing with 5 year warranty with registration

    • Large 2-line backlit display

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

  • testo 435-1 - Multifunction meter

    Order-Nr. 0560 4351

    The testo 435-1 is an economic multifunction meter capable of monitoring, analyzing, and diagnosing indoor air quality. In addition, you can easily pinpoint and troubleshoot airflow problems with HVAC systems, and immediately see the results of corrections. Commissioning, validating, benchmarking, or simpy adjusting HVAC systems are all easy with the testo 435-1.

    • Wide array of probes available for various applications

    • Optional wireless (RF) temperature probes for remote measurement

    • Backlit LCD for easy viewing

    • Optional printer allows for easy documenting of measured data

  • testo 622 - Thermo hygrometer and barometer

    Order-Nr. 0560 6220

    The testo 622 thermo hygrometer 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 / 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 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 435-3 - Multifunction meter w/ integrated differential pressure

    Order-Nr. 0560 4353

    The testo 435-3 multifunction meter is perfect for monitoring, analyzing, and diagnosing indoor air quality, wherever you need to take important IAQ measurements. In addition, you can easily pinpoint and troubleshoot airflow problems with HVAC systems, and immediately see the results of corrections. Commissioning, validating, benchmarking, or simpy adjusting HVAC systems are all easy with the testo 435-3.

    • Integrated differential pressure measurements for flow velocity

    • Optional wireless (RF) temperature probes for remote measurement

    • Backlit LCD for easy viewing

    • Optional printer allows for easy documenting of measured 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 435-2 - Multifunction meter w/ memory and software

    Order-Nr. 0563 4352

    The testo 435-2 multifunction meter is perfect for monitoring, analyzing, and diagnosing indoor air quality, wherever you need to take important IAQ measurements. In addition, you can easily pinpoint and troubleshoot problems with HVAC systems, and immediately see the results of corrections. Commissioning, validating, benchmarking, or simpy adjusting HVAC systems are all easy with the testo 435-2.

    • Built-in memory stores up to 10,000 measurements

    • Optional wireless (RF) temperature and humidity probes for remote measurement

    • Backlit LCD for easy viewing

    • Optional printer allows for easy documenting of measured data

  • testo 480 - Digital temperature and humidity meter

    Order-Nr. 0563 4800

    Air flow measurements in ventilation ducts, temperature measurements in laboratories, humidity measurements in production, pressure difference measurements in clean rooms – the testo 480 temperature and humidity meter comes with a wide range of optional sensors that allow you to measure, analyze, 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 / WBGT

    • High precision, integrated pressure difference sensor included

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

    • Intelligent calibration concept

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

    Order-Nr. 0572 1767

    The testo 176 P1 pressure, temperature, and humidity measurement logger has a large display that makes it easy to read. The 176 P1 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

31 Products found
Show more