Empower
your world.
Faster, simpler, more sustainable:
with the smart networked HVAC/R world of Testo.
SMART WORLD OF TESTO
Full sustainability.
For you and your world.
Sustainable technologies are up and coming, energy efficiency requirements are getting stricter and new digital skills are in demand. The testo Smart World helps you to master all your challenges: With future-proof tools and smart accessories for every application. With the testo Smart App as the digital platform that bundles all the measurement results and makes the job even more efficient with new PRO measurement programs. And with our decades of experience in air conditioning, refrigeration and heating technology. So that you don't waste precious energy, but can get off to a sustainable and energy-efficient start.
Just smart.
Just safe.
One app for all applications: The testo Smart App makes wireless measurement more efficient than ever and brings all results together safely. With the new PRO measuring programs you save a lot of energy – including your own.
SMART
Automatic Bluetooth pairing
NEW
PRO measurement programs
FAST
All readings at a glance
PRACTICAL
Second screen, remote control and real time measurement data
EFFECTIVE
Create and send reports digitally
Sustain your world.
The world needs you – and your power for more sustainability and energy efficiency. At Testo, we provide you with the necessary resources. With fully networked air conditioning, refrigeration and heating tools for more energy-efficiently adjusted systems and new, environmentally-friendly technologies and refrigerants. Highly precise. Highly multifunctional. With all accessories, all measurement data stored centrally, all solutions from a single source. This saves you energy, costs and stress in everyday life. And make the world a better place in the long term.
VENTILATION AND AIR CONDITIONING TECHNOLOGY.
Save energy and costs.
On air conditioning and ventilation systems.
Good for the indoor climate. Good for the environment. Good for you: With measuring technology from Testo all air conditioning and ventilation systems can be optimally adjusted in no time at all. This improves the energy balance, lowers costs and reduces the CO2 footprint. Whether at outlets, filters or in ducts – with Testo you are ideally equipped for all of today's tasks. And make a significant contribution to a better tomorrow.
Full energy-efficiency – with the HVAC portfolio from Testo
Up to 50% of energy costs in buildings
are caused by ventilation and air conditioning systems.
MULTI-FUNCTIONAL CLIMATE MEASURING INSTRUMENT TESTO 440
Reliable and energy-efficient.
For all climate-related parameters.
Ready for a sustainable future: With the testo 440 climate measuring instrument, you measure all climate-relevant parameters quickly, intuitively and extremely conveniently. Thanks to the wide range of probes, you have all applications on air conditioning and ventilation systems securely under control. In ducts, on filters and at outlets.
Intuitive measurement menus for volume flow and other parameters
Wireless Bluetooth® probes
Internal memory for up to 7,500 measured values
USB port for data export
Recommended by the professionals:
This is what users say about the testo 440
The advantages of Testo's hand-held measuring instruments are obvious: Fast and precise temperature and humidity results.
Joachim Helwig
·In-house technician at SC Freiburg
Ready to go with the HVAC kits from Testo.
At outlets, in ducts and on filters.
testo 440 flow ComboKit 1
The testo 440 in a practical kit with Bluetooth® vane probe (Ø 100 mm) and hot-wire probe – both including temperature sensor.
testo 440 flow ComboKit 2
The testo 440 climate measuring instrument in a kit with Bluetooth® vane probe (Ø 100 mm) and vane probe (Ø 16 mm) – both incl. temperature sensor.
testo 440 delta P air flow ComboKit 2
Climate measuring instrument testo 440 dP incl. differential pressure sensor in a kit with two vane probe heads, humidity/temperature probe head and Bluetooth® telescope.
Mini data loggers testo 174
Simply safe
and efficient systems.
With the new testo 174 data logger for temperature and humidity
For simple commissioning, system testing and maintenance of HVAC/R systems. With intuitive configuration and analysis of the measurement data via the testo Smart App. Continuous monitoring of temperature and humidity has never been so quick and easy! Convince yourself!
New: testo 318 - Inspection camera
The efficient optical inspection
The new testo 318 inspection camera / industrial endoscope is ideal for the efficient inspection of flues, chimneys, boilers, air conditioning and ventilation systems and offers simple, precise and fast identification and removal of sources of interference at a perfect cost/benefit ratio.
Intuitive Climate measurement.
Get all the product knowledge you need about the testo 440 –
as a free download.
All probes and accessories
Special kits for any application
Details on the intuitive measurement menus
And lots more besides ...
Compact, sustainable
and with App connection.
As versatile as your challenges: the compact HVAC measuring instruments from Testo offer simple solutions for all specific parameters, systems and requirements. From a single source – and with a practical connection to the testo Smart App.
At outlets
Fast, flexible and compact: Digital differential pressure measuring instrument with App connection
Optimally balanced ventilation systems.
With the PRO measuring program of the testo Smart App.
As modern buildings are increasingly better insulated, balanced residential ventilation systems are often installed to ensure a pleasant indoor climate and to prevent damp and mould. Correct sample planning, commissioning and inspection are crucial for these systems to be operated ecologically. Climate measurement technology from Testo supports you in this. With the unique PRO measurement program for regulating air conditioning systems in the testo Smart App, and the testo 417 vane anemometer. Sustainable and efficient building technology can be this easy.
This is a modal window.
VOLUME FLOW HOOD TESTO 420
Optimally equipped.
Also for large vents.
Ultralight, with detachable measuring instrument and stand for precise volume flow calculations, even at swirl diffusers and up to a ceiling height of 4m. Ideal for use with the new PRO measurement program for regulating balanced residential ventilation systems in the testo Smart App.
The concentrated expert knowledge
for an energy-efficient future.
Practical guide
Measurement tasks on residential ventilation systems
Everything you need to know about balancing ventilation systems – download now for free.
Practical guide
Air flow measurements in ducts according to DIN 12599
Get the free practical guide and learn all about air velocity and the optimum measuring locations and methods.
REFRIGERATION TECHNOLOGY
Sustainably into the future.
With refrigeration measurement technology from Testo.
The global demand for air conditioning and refrigeration systems is increasing – and ambitious climate targets are being set at the same time. With tools from Testo, we give you everything you need to set up climate-friendly and energy-efficient systems and comply with new climate protection regulations without additional effort: Future-proof manifolds for new, more environmentally friendly refrigerants, high-precision and smart tools with seamless connectivity and connection to the testo Smart App, fully automated measurement solutions and the testo Smart World, which is consistently geared towards the future.
Full connectivity – with the refrigeration portfolio from Testo
New F-gases regulation:
Significant reduction in emissions of fluorinated gases in the EU by 2030New EPA regulation:
Reduction of HFC refrigerants with high GWP (Global Warming Potential) by 85% in the USA by 2036More hybrid systems:
Appliances that cool and heat are becoming increasingly importantTarget by 2030:
Installation of 6 million new heat pumps in Germany
Future-ready:
The world of Testo refrigeration measurement technology.
Whether professional, all-rounder or beginner: Testo's digital manifolds are fully geared towards the future. With maximum precision for highly energy-efficient plants. With A2L and A3 refrigerant compatibility for new, more environmentally friendly technologies. And with smart connectivity that not only saves energy, but also valuable time.
Fully professional
The professional class with the longest service life worldwide – perfect for long-term measurements.
Compatible with A3 and A2L refrigerants
Data logging with intelligent error analysis
Highest precision even at low pressures
Up to 360 hours' running time
Full speed
The allrounder with Bluetooth auto connect – for fast, precise and completely wireless measurements.
Large graphic display
Robust housing with protection class IP 54
Efficiently guided measurement menus
Fully stress-free
Perfect for entry-level users – the large graphic display delivers all results at a glance.
Large graphic display
Connection to testo Smart App and Smart Probes
Particularly compact
Clever additional functions
Fully smart
The smallest digital manifold on the market – for app-controlled, wireless measurements and digital documentation.
All measurements completely App-controlled
Extremely robust housing
Optionally expandable with the testo Smart Probes
Recommended by the professionals:
What users say about the future-proof testo 570s
The fact that the testo 570s is also compatible with A3 refrigerants means that I am ideally equipped for use in more environmentally friendly refrigeration systems. The long battery life also means I have to charge much less often, which saves time and energy.
Andreas Becker
·Rox Klimatechnik GmbH
The complete refrigeration know-how
Everything you need to know for more sustainability and energy efficiency in refrigeration systems: Find out in these 3 modules. Download now free of charge!
Understanding refrigeration plants
Principles and main components of refrigeration technology
Measuring refrigeration systems correctly
And lots more besides ...
More to make your world
even better.
Automatic vacuum pump
Fully automatic evacuation thanks to the auto-stop function and self-starting vacuum hold test – with the smart vacuum pump testo 565i, also compatible with A3 and A2L refrigerants.
Clamp meter
The new clamp meter with improved measuring accuracy and innovative gripping mechanism for optimally adjusted systems.
testo Smart Probes
From vacuum to temperature to air humidity: Wireless, precise, highly efficient and simple App-controlled measurement with testo Smart Probes.
Digital refrigerant scale
With the digital refrigerant scale and the intelligent valve, filling is stopped automatically once a target value is reached.
Leak detector
Reliably detects all common refrigerants and detects even the smallest leaks thanks to its high sensitivity.
Leak detector
Perfect for professional leak detection: Very high sensitivity, visual and audible alarm, permanent sensor check.
HEATING TECHNOLOGY
Climate-friendly and efficient.
On heating systems and heat pumps.
New regulations, new hybrid systems and heat pumps, new requirements for digitalization: With measurement technology from Testo and the digital Smart World, you are ideally equipped for a sustainable future – and are already taking climate protection and energy efficiency to the next level today.
Full connectivity – with the heating portfolio from Testo.
New legislation:
New Ecodesign Regulation for space heaters and combination heaters in the EU from September 1, 2025
From September 1, 2029 , new heating systems must have an efficiency of at least 115 %New expertise:
In order to achieve political climate targets by 2030, the number of fitters must increase by 50%.
In order to counter the shortage of skilled workers, existing installers must be retrained and new junior staff must be recruited.New, reversible technologies:
In Germany,heat pumps must be connected by heating engineers and electricians from all trades.
Flue gas measurement
re-invented.
As a heating engineer, if you want to do a first-class job with regard to sustainability, you need flexibility, efficiency and new smart ways of dealing with the technologies of the future. This is exactly what the tools from Testo offer you.
Efficient
The flue gas analyzer with Smart Touch display and Bluetooth connector – for up to four additional parallel measurements.
Wireless
Measure temperature and differential pressure easily, quickly and wirelessly – with the practical Heating kit.
Handy & intelligent
Differential pressure measuring instrument with smartphone operation – ideal for gas boilers, air flow velocity and volume flow.
Fast & simple
Clamp thermometer with smartphone operation – perfect for flow and return temperatures, with a Bluetooth range up to 100 m.
Easy
The flue gas analyzer for simultaneous measurement and display of all relevant parameters – with configurable display.
Tipps & Tricks
for flue gas analysis
Get the full package of expert knowledge for your heating system jobs –
as a free download.
Checking the gas connection pressure
Preparing the flue gas analyzer
Determining the flue gas loss
Setting the gas-air ratio
Calculating the efficiency
And lots more besides ...
Accelerating the heating transition.
With Testo.
Heat pumps and hybrid systems are good for the environment. The digital manifolds and practical heat pump kits are good for you. This increases energy efficiency, makes a valuable contribution to climate protection and is also unbeatably efficient in other ways – when measuring, charging, documenting and all the other to-dos on your list. The heating transition can come!
11% more heat pumps were installed worldwide in 2022 alone
54 megatons of CO2 were saved by heat pumps in Europe alone in 2022
4.3 million new heat pumps in 2022 in the USA alone
20% of the global heat demand in buildings must be covered by heat pumps by 2030 in order to meet existing energy and climate promises
More to make your world
even more sustainable.
A complete overview for complete climate protection: with thermal imagers from Testo, you can easily and efficiently detect leaks and reliably keep an eye on possible energy losses when checking radiators, underfloor heating or photovoltaic systems.
For pros: outstanding thermal image quality and useful additional features save time and ensure perfect work results. With App integration.
For all-rounders: highest image quality, excellent thermal sensitivity and innovative functions. With App integration.
One App.
All applications.
The testo Smart App brings everything together to make completing tasks even more efficient: End-to-end connectivity, wireless measurements and all data at a glance. Download now free of charge!
SMART
Automatic Bluetooth pairing
NEW
PRO measurement programs
FAST
All readings at a glance
PRACTICAL
Second screen, remote control and real time measurement data
EFFECTIVE
Create and send reports digitally
Find all the latest news, tools and trends:
In the testo HVAC/R magazine.
Get the free HVAC/R magazine with even more exclusive insights and perspectives, packed full of professional knowledge. Take a look now and get up to speed!
The future is coming – to your home:
In the testo newsletter.
Get even more exciting news, tool tips, offers and advice from Testo’s Smart World directly to your smartphone with our free newsletter.
