Differential pressure gauges with built-in probe

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)

Extensive accessories included: set of 4 filling tubes, 2 x clamp temperature probes, precise external Pirani gauge for vacuum measurement and transport case
 

Calculation of superheating and subcooling in real time for 60 refrigerants: no error-prone manual calculation

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

Temperature-compensated leakage test, automatic ambient pressure measurement

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 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 

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

Smart, intuitive measurement programs including HVAC grid measurement as per EN ISO 12599 and ASHRAE 111, PMV/PPD and turbulence as per EN ISO 7730 and ASHRAE 55

High-precision, location-independent and integrated differential pressure sensor

Measure all IAQ-related parameters – with our wide range of probes for all IAQ measurements

Document measuring values directly on the customer's site and send them by e-mail, or further analyze them using the testo DataControl PC software

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

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

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

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

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

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

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

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

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
 

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

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

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