Differential pressure gauges with built-in probe

The testo 550 digital manifold can now make working on refrigeration systems and heat pumps even easier: the instrument can be used for 60 refrigerants, calculates superheating/subcooling automatically and can now also be connected to a practical smartphone/tablet app. The app makes the operation and the documentation of measurement results significantly more convenient.

• Automatic superheating/subcooling calculation: no more need for manual calculations, which are prone to error

• With a practical app: (remote) display, graphical progress display, documentation of readings

• Temperature-compensated leakage test 

• 60 current refrigerants are included in the manifold (update possible via app)

The testo 557 digital vacuum gauge fulfils numerous functions, which are required for working on refrigeration systems and heat pumps, in just one instrument: for example superheating/subcooling calculation, vacuum measurement, temperature-compensated leakage test. You can also use a practical app to monitor the manifold via your smartphone/tablet and store the measurement results or send them by e-mail.

• Calculation of superheating and subcooling in real time: no manual calculation, which is prone to error

• Connect to smartphone/tablet app: remote monitoring and smart measurement documentation

• Precise external Pirani gauge for vacuum measurement, temperature-compensated leakage test, automatic ambient pressure measurement

• The 60 most common refrigerants are stored in the instrument, subsequent updates possible (via app)

Differential pressure measurement on gas hot water heaters or on filters of air conditioning systems, and also flow measurements in ventilation ducts using a Pitot tube: the compact testo 510 differential pressure measuring instrument, which comes with a silicone connection hose and other useful accessories, can help you maintain and install systems in the sanitary and HVAC sector.

• Differential pressure measurement from 0 to 100 hPa 

• Flow measurement possible with a Pitot tube (available as an option)  

• Magnets on the rear allow hands-free work 

• 10 units to choose from, display in pascals can be selected 

The testo 549 digital manifold offers many advantages in comparison with analog manifolds: the instrument will make it easier for you to work on refrigeration systems and heat pumps. With its integrated temperature measurement and automatic calculation of superheating/subcooling, you can now do away with additional measurements and manual comparisons (when using an optional clamp probe). You can also use the manifold for 60 current refrigerants.

• 60 current refrigerants stored in the instrument

• Calculation of superheating and subcooling in real time (with optional clamp probe): saves you from having to carry

• Temperature-compensated leakage test

• Two temperature-compensated pressure sensors

The testo 570-2 digital manifold equips you to measure, analyze and log – among other things – pressure, temperature, electricity and vacuum measurements. The pressure gauge is ideal for all measurement tasks on refrigeration systems and heat pumps.

• 40 refrigerants stored

• Simultaneous superheat and subcooling calculation

• Record up to 999 h measurement values

• Includes 2-clamp temperature sensor, PC software, USB cable, power adaptor and carry case

The testo 512 differential pressure meter is available as four different models. This model has a measuring range from 0…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, mm H2O, mmHg, inch H2O, inch Hg

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

• Integrated density compensation

• Backlit display, min/max values, hold function

The testo 512 differential pressure meter is available as four different models. This model has a measuring range from 0…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, mm H2O, mmHg, inch H2O, inch Hg

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

• Integrated density compensation

• Backlit display, min/max values, hold function

The pressure measuring instrument testo 512 is available as four different models. This model has a measuring range from 0 to 20 hPa and is ideal for measuring differential pressure at filters and for carrying out pitot static tube air flow measurements between 5 and 55 m/s in air ducts.

• 8 measurement units to choose from: psi, kPa, hPa, Pa, mm H2O, mmHg, inch H2O, inch Hg

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

• Integrated density compensation

• Backlit display, min/max values, hold function

Purchasing the testo 570-1 refrigeration manifold ideally equips you to carry out quick, reliable measurements on refrigeration systems and heat pumps along with temperature-compensated tightness tests. Moreover, it calculates superheating and subcooling simultaneously.

• 40 refrigerants are stored in the instrument

• Calculation of superheating and subcooling possible in parallel

• 999 hours of recording readings

• Set includes a clamp temperature probe for measuring the surface temperature of pipes

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 0 to 2000 hPa.

• 7 pressure units to choose from: kPa, hPa, mm H2O, mmHg, psi, inch H2O, inch Hg

• Large measuring range up to 2000 hPa

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

• Illuminated display, min./max. value display, hold function

The high-precision testo 521-1 differential pressure measuring instrument is ideal for accurate differential pressure measurements in air conditioning and ventilation technology, for instance for pressure drop on filters, 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 312-4 differential pressure gauge
testo 312-4 hose set
balloon pump with release screw
conical test plug 1/2
conical test plug 3/4
testo fast printer
pressure set for gas pressure measurements in heating systems
system case

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
   

Professional pressure/leak detector for installation, maintenance and service of gas and water pipes. Specially designed to carry out reliable leak tightness checks, load tests, serviceability tests, temperature measurements in accordance with existing rules and regulations.

• Easy to set up, easy to use due to legally compliant measuring menus (i.e. according to TRGI 2008)

• Extremely accurate and DVGW-compliant measuring results

• Leak tightness checks of gas pipes according to TRGI 2008 and liquid gas pipes according to TRF 2012

• Easy to use due to automatic pressure build-up; quick and easy data storage

You can carry out all the necessary tests on gas heating systems as well as water and gas pipes with the testo 312-4 electronic differential pressure measuring instrument. Preset measuring processes, for example for load and tightness tests as well as serviceability testing on gas pipes, provide you with ideal support for your work.

• Tightness testing and load testing on gas pipes

• Serviceability testing with air by pressure drop on gas pipes

• Pressure testing on drinking water and waste water pipes using air

• Automatic recording of measuring values over several hours

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

• Integrated differential pressure sensor with an accuracy of 0.1 % 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 312-4 differential pressure gauge
testo 312-4 hose set
balloon pump with release screw
conical test plug 1/2
conical test plug 3/4
testo fast printer
pressure set for gas pressure measurements on heating systems
high-pressure plug 3/8 und 3/4
high-pressue plug 1/2 and 1
high-pressure probe 1up to 25 bar
system case

Carry out measurements without any annoying cables: use the kit to handle all relevant measurements in ventilation ducts and at air/ceiling outlets. You will receive the testo 440 dP air velocity and IAQ measuring instrument including differential pressure sensor and the 100 mm vane probe head and hot wire probe head (Ø 9 mm) for attachment to the universal Bluetooth handle supplied.  To make measurements more convenient, both probe heads can be combined with the telescope included in the kit. The equipment can be transported safely and conveniently in the robust case.

• Intuitive: clearly structured measurement menu for volume flow and parallel determination of air velocity, differential pressure, humidity and temperature in ventilation ducts or at ventilation outlets

• Space-saving: simply combine the universal Bluetooth handle with the 100 mm vane or hot wire probe head and the extendable telescope (1.0 m)

• Convenient: wireless probes, internal data storage and USB port for data export

• As multifaceted as your challenges themselves: the testo 440 dP has an integrated differential pressure sensor and can be expanded with a large portfolio of digital probes

Precise, reliable measurement of all air velocity and IAQ parameters with just one measuring instrument: the multifunction measuring instrument features an integrated differential pressure sensor and intuitive operation with clearly structured measurement menus. Adjusting air conditioning and ventilation systems, monitoring air quality or carrying out comfort level measurements – thanks to versatile options for combining with high-quality, digital probes, you are ideally equipped to carry out your measuring task (please order probes separately).

• Intuitive: clearly structured measurement menus for volume flow, K-factor, degree of turbulence, cooling/heating output, mould detection and long-term measurement, such as CO₂

• Wireless: Bluetooth® probes for extra convenience when measuring and less cable clutter in the measuring case (please order probes separately)

• Clear and reliable: large graphic display with parallel display of 3 readings as well as internal data storage and USB port for data export

• Includes a differential pressure sensor: for Pitot tube measurement and monitoring filters

Carry out measurements without any annoying cables: use the kit to handle all relevant measurements in ventilation ducts and at air/ceiling outlets. You will receive the testo 440 dP air velocity and IAQ measuring instrument including differential pressure sensor, two vane probe heads (Ø 100 mm and Ø 16 mm) and a humidity/temperature probe head – all three can be attached to the universal Bluetooth handle supplied. To make measurements more convenient, both vane probe heads can be combined with the telescope included in the kit. The equipment can be transported safely and conveniently in the robust case.

• Intuitive: clearly structured measurement menu for volume flow and parallel determination of air velocity, differential pressure, humidity and temperature in ventilation ducts, at ventilation outlets and in work rooms

• Space-saving: combine the universal Bluetooth handle with the humidity/temperature probe head or extendable telescope (1.0 m). Vane probe heads (Ø 16 mm, Ø 100 mm) can simply be plugged onto the telescope

• Convenient: wireless probes, internal data storage and USB port for data export

• As multifaceted as your challenges themselves: the testo 440 dP has an integrated differential pressure sensor and can be expanded with a large portfolio of digital probes