Absolute pressure

Also known as relative or static pressure, absolute pressure applies to the vacuum of free space. Calculating absolute pressure is relatively tricky, as it involves adding gauge pressure to atmospheric pressure. Absolute pressure serves as a point of reference for HVAC technicians. For example, depending on system settings, building location and other factors, atmospheric pressure is not constant across different situations. Static pressure eliminates this variability by providing a constant point of citation. Testo’s absolute pressure meters is the preferred choice among HVAC technicians. Did you know: Absolute pressure relates to the vacuous space of the universe (zero pressure).

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27 products or recommendations for Absolute pressure
  • testo 511

    testo 511 - Absolute Pressure Meter

    Order-Nr. 0560 0511

    £ 161.00
    incl. VAT  £ 193.20
    • High-precision absolute pressure measurement with an accuracy of ±3 hPa
    • Suitable for barometric altitude measurements
    Details
  • testo 622

    testo 622 - Hygrometer with Pressure Indication

    Order-Nr. 0560 6220

    £ 255.00
    incl. VAT  £ 306.00
    • Measures air temperature, relative humidity and pressure
    • Ideal for monitoring the ambient air especially in laboratories
    Details
  • testo 635-2

    testo 635-2 - Thermohygrometer

    Order-Nr. 0563 6352

    £ 499.00
    incl. VAT  £ 598.80
    • Optionally available sensors for moisture, temperature, pressure dew point and absolute pressure measurements
    • 2 plug-in sensors and 3 wireless sensors can be connected
    Details
  • testo 635-1

    testo 635-1 - Temperature and Humidity measuring instrument

    Order-Nr. 0560 6351

    £ 379.00
    incl. VAT  £ 454.80
    • Probes available as an option mean you can measure air humidity, temperature, absolute pressure and dew point in compressed air
    • Two plug-in probes and 3 radio probes can be attached
    Details
  • testo 176 P1

    testo 176 P1 - Absolute Pressure Data Logger

    Order-Nr. 0572 1767

    £ 574.00
    incl. VAT  £ 688.80
    • Professional software with Excel export function for programming the logger and data analysis
    • Records up to 5 measurements at the same time
    Details
  • testo 552

    testo 552 - Digital Vacuum Gauge (Bluetooth)

    Order-Nr. 0560 5522

    £ 174.00
    incl. VAT  £ 208.80
    • Control and read complete measurement via smartphone
    • Extremely precise, extremely rugged, extremely practical – with visual alarm and backlit display
    Details
  • testo 550i - App-controlled digital manifold with Bluetooth and 2-way valve block

    Order-Nr. 0564 2550 02

    £ 160.00
    incl. VAT  £ 192.00
    • All activities, from measurement through to documentation, using the testo Smart App on your Smartphone
    • The smallest digital manifold on the market
    Details
  • testo Smart Probes AC & Refrigeration Test & Load Kit Plus delivery

    testo Smart Probes AC & refrigeration test kit plus

    Order-Nr. 0563 0002 41

    £ 495.00
    incl. VAT  £ 594.00
    • High-precision measurement technology with convenient smartphone operation
    • In the kit: 2 x testo 115i clamp thermometers, 2 x testo 549i high-pressure gauges, 2 x testo 605i thermohygrometers, testo Softcase
    Details
  • testo Smart Probes AC & Refrigeration Test Kit delivery

    testo Smart Probes AC & refrigeration test kit

    Order-Nr. 0563 0002 10

    £ 295.00
    incl. VAT  £ 354.00
    • High-precision measurement technology with convenient smartphone operation
    • In the kit: 2 x testo 115i clamp thermometers, 2 x testo 549i high-pressure gauges, testo Smart Case
    Details
  • testo 191-P1

    testo 191-P1 - HACCP pressure data logger

    Order-Nr. 0572 1916

    • High-precision monitoring of absolute pressure in the 1 mbar to 4 barabs range
    • Durable, robust, reliably tight, even after changing the battery
  • testo 190 P1

    testo 190-P1 - CFR Pressure data logger

    Order-Nr. 0572 1900

    • High-precision monitoring of absolute pressure in the 1 mbar to 4 barabs range
    • Durable, robust, reliably tight, even after changing the battery
  • testo 552i

    testo 552i - App-controlled wireless vacuum probe

    Order-Nr. 0564 2552

    £ 144.00
    incl. VAT  £ 172.80
    • Identify vacuum quickly and easily by means of the graphical display in the App or on the digital manifold screen
    • Connects automatically via Bluetooth® to the testo Smart App and digital manifolds
    Details
  • testo 549i

    testo 549i - High-pressure gauge operated via smartphone

    Order-Nr. 0560 2549 02

    £ 76.00
    incl. VAT  £ 91.20
    • Measurement of high and low pressure
    • Low refrigerant loss – since no hoses are required for measurements
    Details
  • testo ComSoft Professional software

    ComSoft Professional - software

    Order-Nr. 0554 1704

    £ 345.00
    incl. VAT  £ 414.00
    • Professional software for programming and readout of Testo data loggers and for archiving data
    • Graphic and tabular display of all measurement parameters
    Details
  • ComSoft Basic Software

    testo ComSoft Basic v5 SP 6.5 - Logger software

    Order-Nr. 0572 0580

    • Programme and read out Testo data loggers using the basic software
    • Particularly clear: graphic and tabular display of readings
  • testo ComSoft 21 CFR Part 11 software

    ComSoft 21 CFR Part 11 - software

    Order-Nr. 0554 1705

    £ 1,550.00
    incl. VAT  £ 1,860.00
    • Intuitive and validatable software for the pharmaceutical industry
    • Graphic and tabular display of all measurement parameters
    Details
  • Interface

    USB interface for data loggers

    Order-Nr. 0572 0500

    £ 86.00
    incl. VAT  £ 103.20
    • For transferring readings to your PC
    Details
  • Pressure probe, 2000 hPa

    Pressure probe, 2000 hPa, measures absolute pressure

    Order-Nr. 0638 1645

    £ 568.00
    incl. VAT  £ 681.60
    Details
  • Battery, 3.6 V/1.9 Ah 1AA

    Battery, 3.6 V/1.9 Ah 1AA

    Order-Nr. 0515 0177

    £ 36.00
    incl. VAT  £ 43.20
    • Lithium mignon battery (AA)
    Details
  • testo 160 IAQ

    testo 160 IAQ - WiFi data logger with display and integrated sensors for temperature, humidity, CO2 and atmospheric pressure

    Order-Nr. 0572 2014

    £ 524.00
    incl. VAT  £ 628.80
    • Ideal for monitoring indoor air quality (IAQ)
    • Blends in perfectly with the surroundings thanks to an optional, customizable deco-cover
    Details
  • 0638 1847_absolute-pressure-probe

    Pressure probe, 2000 hPa, measures absolute pressure, in rob...

    Order-Nr. 0638 1847

    £ 459.00
    incl. VAT  £ 550.80
  • Mobile Printer 0572 0576

    Mobile printer for data loggers

    Order-Nr. 0572 0576

    £ 374.00
    incl. VAT  £ 448.80
    • Handy printer 
    • Printout of readings at the measuring location
    Details
  • Lithium mignon battery (AA)

    Lithium mignon battery (AA)

    Order-Nr. 0515 1760

    £ 29.00
    incl. VAT  £ 34.80
    • 1 lithium mignon battery (AA)
  • Wall holder

    Wall bracket for data loggers

    Order-Nr. 0554 1703

    £ 25.00
    incl. VAT  £ 30.00
    • For reliably securing appropriate data loggers to the wall
    • Particularly secure thanks to the lock included in delivery
    Details
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