Smart up
your world.

Embrace full power:
with the smart networked HVAC/R world of Testo.

SMART WORLD OF TESTO

This simply

simplifies everything.

Urbanization, climate change and technological change are advancing in leaps and bounds and presenting the HVAC/R industry with new challenges. We make it easy for you to keep up. With Testo's innovative HVAC/R world and its smart tools that meet tomorrow's technological requirements today. Fully networked, fully flexible, fully intuitive. So that you can react flexibly and quickly to changes and stay cool and calm even in complex times.

testo Smart App

The whole world
in one app.

One app for all applications: The testo Smart App brings all tools and measurements together and makes wireless measurement and documentation faster and easier than ever, even for complex tasks.

Find out more

SMART

Automatic Bluetooth pairing

BASIC

All measured values centralized

PRACTICAL

Easy documentation

FLEXIBLE

Second screen function, remote control and live measurement data

NEW

Digital upgrades

Get it on Google Play

Download on the App Store

Explore it on AppGallery

Cool up your world.

Understanding new technologies and digitalization as an opportunity – we make it easy for you. With the smartest HVAC/R world of Testo. Developed to make your job easier in all applications. With smart tools, end-to-end connectivity, flexible upgrades and the testo Smart App, which brings all measurements together centrally and easily. Sounds cool? It is!

The simple interconnectivity of the instruments gives the customer unprecedented flexibility.

Testo's cross-application product range has always been a major customer advantage. In particular, however, the easy connectivity of the instruments with each other, especially with regard to the additional functionalities of the testo Smart App, provides the customer with unprecedented flexibility, including personalization of the functional areas. The breadth of connectivity and ease of use is unique to Testo!

Hubert Mitterling

·

Product Owner, Cloud & amp; mobile software at Testo

The HVAC/R world
of Testo

Air conditioning technology

Find out more

Refrigeration technology

Find out more

Heating technology

Find out more


VENTILATION AND AIR CONDITIONING TECHNOLOGY

Flexible, simple and efficient.
Even for complex challenges.

Full connectivity – with the climate portfolio from Testo

Find out more

Multi-functional climate measuring instrument testo 440

All measurements.

All parameters.

All easy.

A real all-rounder: With the compact testo 440, you can measure all climate-relevant parameters easily and efficiently. Whether in the duct, at the outlet, at the filter or for balanced residential ventilation: the choice of probes and matching accessories is almost limitless - as is the noticeable relief in everyday life.

  • SIMPLE OPERATION thanks to intuitive measurement menus

  • VERSATILE USE thanks to broad probe portfolio

  • FLEXIBLE HANDLING thanks to wireless Bluetooth® probes

Clear for take-off.

With the testo 440 ready-to-go kits.

testo 440 flow ComboKit 1

  • Ideal for measurements in ventilation ducts and at outlets.

testo 440 dP flow ComboKit 2

  • Ideal for measurements on filters, in ventilation ducts and at air/ceiling outlets.

testo 440

Intuitive Climate measurement.

Get all the product knowledge you need about the testo 440 –
as a free download.

Go to download

All probes and accessories

Special kits for any application

Details on the intuitive measurement menus

And lots more besides ...

RECOMMENDED BY THE PROS:

SC Freiburg: Highest demands on quality and technology

The stadium is the centerpiece, but guests, VIPs, employees and players of SC Freiburg should also feel comfortable in the interior. To guarantee this, the sports club relies on measurement technology from Testo. The testo 440 climate measuring instrument is a real all-rounder – not only indoors, but also on the pitch and in the professional relaxation pool. “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

DIGITAL VANE ANEMOMETER TESTO 417

Flexible in use.
Easy to handle.

With the compact digital 100 mm vane anemometer testo 417, flow velocity, volume flow and temperature can be measured simultaneously at air inlets and outlets of air conditioning and ventilation systems. With the matching testo 417 sets including funnel and flow straightener, measuring at swirl diffusers is also child's play.

  • Simple, fast and precise measurement of the parameters

  • Seamless documentation with the testo Smart App

  • Fast in-app configuration, graph history, second screen and measurement data memory

  • Timed and point mean value calculation

Air conditioning and ventilation systems easily under control.
With the practical testo 417 accessories.

testo 417 kit 1: Vane anemometer with measurement funnels

  • Practical kit for fast and precise measurement of flow rate, volume flow and temperature at air inlets and outlets.

testo 417 kit 2: Vane anemometer with measuring funnels and flow straighteners

  • Facilitates measurements on air inlets and outlets as well as on plate outlets and swirl diffusers. With two measuring funnels and a volume flow straightener.

Adjusting balanced systems

more easily.

Make the commissioning and inspection of balanced systems easy: With the specially developed PRO measurement program in the testo Smart App together with the testo 417 vane anemometer. This makes you 30% faster – and 100% safe and relaxed.

Simple, fast, precise.

The digital HVAC measuring instrument with app connection.

Made to make air conditioning, ventilation and balanced residential systems easy for you: The digital HVAC measuring instruments, with testo Smart App connection, provide the exact measurement values for all critical parameters quickly and easily. They are compact, robust and simplify every measurement task thanks to smart in-app configuration, clear graphical progression and practical second screen function.

At outlets

testo 425
  • Digital hot wire anemometer with App connection

At outlets

testo 512-1
  • Digital differential pressure measuring instrument with App connection

Temperature

testo 925
  • Fast and flexible: Temperature measuring instrument with attachable temperature sensors.

Differential temperature

testo 922
  • Temperature measuring instrument for easy measurement and display of the differential temperature.

Indoor air quality

testo 625
  • Fast, easy and precise: Digital thermohygrometer with App connection.

In ducts

testo 420
  • Lightweight volume flow hood for larger swirl outlets for measuring volume flow, temperature and relative humidity.

The concentrated expert knowledge
for a digital future.

Practical guide

Find out more

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.

Practical guide

Find out more

Measurement tasks on residential ventilation systems

  • Find out everything you need to know about balancing ventilation systems. Download now free of charge

New

Precise indoor climate monitoring.
Efficient, convenient and in real time.

Whether perfectly tempered goods or optimally air-conditioned rooms: The brand new data loggers from Testo ensure precise monitoring and maximum safety through reliable monitoring of climate-relevant measured values, making them the ideal addition to air conditioning and ventilation technology. Thanks to seamless app connection and intelligent networking, handling is child's play – even for inexperienced staff.

Mini data loggers testo 174

Simply safe

and efficient systems.

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!

All data loggers for temperature

Handy data loggers for reliable monitoring of temperatures between -30 °C and +70 °C. Easy configuration and data analysis via the testo Smart App.

All data loggers for humidity

Data loggers for continuous measurement and documentation of temperature and humidity in storage, cold storage and work rooms. Simple configuration and convenient reading of measurement data.

Online data loggers for intelligent climate monitoring: testo 160, testo 162 and testo 164

Are you looking for a smart solution for monitoring multiple measuring points? Then discover the new online data loggers now: Monitoring, alerting and documentation – anytime and anywhere.


REFRIGERATION TECHNOLOGY

Flexible complete solutions
for efficiently adjusted refrigeration and air conditioning systems.

Full connectivity – with the refrigeration portfolio from Testo

Find out more

testo 558s

The smartest manifold of all time.

This is what the HVAC/R world has been waiting for: The new digital manifold testo 558s with intuitive app feel is here.

Genius smart, genius flexible, genius simple – the curtain is raised on the first manifold that is as easy and smart to use as your smartphone. With touchscreen, intuitive app feel and clear measurement graphics. Fully networked and wirelessly connected to the entire refrigeration portfolio. Let’s get in touch!

  • Intuitive app feel and clear measurement graphics

  • Touch screen, buttons or app control

  • All measurement applications, all tools, wirelessly connected

  • A3 and A2L compatible

  • Hybrid charging system combines conventional and rechargeable batteries

For even more flexibility:
the new smart testo 558s kits.

testo 558s Smart Vacuum Kit

  • Smart professional kit with wireless vacuum and clamp temperature probes for high-precision standard measurements.

testo 558s Smart Vacuum Kit with charging hoses

  • Smart professional kit with wireless vacuum and clamp temperature probes and 4-piece charging hose set for perfect connections

testo 558s Smart Vacuum Kit with clamp meter

  • Smart professional kit with wireless vacuum and clamp temperature probes and high-precision current clamp for full flexibility

Smart Probes. Smart measurement.

TESTO 115i

Clamp thermometer

Clamp thermometer for convenient temperature measurement on refrigeration, air conditioning and heating systems.

Fully automatic evacuation and charging of refrigeration systems.

TESTO 565i (7 CFM)

Fully automatic vacuum pump

Fully automatic evacuation with auto-stop function and self-starting vacuum hold test – with the smart vacuum pump testo 565i.

Clamp meter with Bluetooth

Safe non-contact measurements on tightly packed cables: Benefit from many additional functions such as the flexible connection to the testo Smart App, manifolds and more.

Leak detector for refrigerants

Useful for refrigeration engineers: With its high sensitivity, it detects all common refrigerants and finds even the smallest leaks – with very simple operation.

Gas leak detector

Helps you to detect gas leaks and thanks to ATEX protection can also be used indoors and outdoors in potentially explosive areas.

CHECK IT OUT NOW

Understanding
refrigeration systems.

Get the concentrated Testo refrigeration knowledge! In three modules, you will learn all about the structure and operation of refrigeration systems as well as important parameters for measurement and evaluation.

CHECK IT OUT NOW

Checklist
Heat pump maintenance

Everything you need to make installation and maintenance even easier – find out how with our free guide.


HEATING TECHNOLOGY

Master every application.
Fully flexible and with ease.

Full connectivity – with the heating portfolio from Testo.

Find out more

testo 300 NEXT LEVEL

The new simplicity

in flue gas measurement.

Measure up to four additional parameters in parallel – simply, quickly and wirelessly. Nothing could be easier with the testo 300 NEXT LEVEL!

  • Easy parallel measurement

  • Easy second screen function

  • Easy data integration

  • Easy documentation via testo Smart App

New

Parallel measurement
made easy.

In our free checklist for flue gas measurement we show you step by step how easy and versatile parallel measurement with the testo 300 NEXT LEVEL works.

Go to download

ENTRY-LEVEL FLUE GAS ANALYZER TESTO 310 II

The new flexibility
in flue gas measurement.

The perfect start into the digital world of heating measurement technology: Our entry-level model testo 310 II combines best-in-class efficiency and full flexibility for the commissioning and maintenance of heating systems. On the individually configurable display, you have up to seven measurement parameters in view at the same time – for easy parallel measurements and smart documentation. Flue gas measurement was never this efficient and simple!

  • Measure and display up to 7 parameters simultaneously

  • Individually configurable display

  • Easy and intuitive menu guidance

  • Data transfer and customer data management via testo Smart App

TESTO SMART PROBES HVAC KIT

Simply smart
and wireless.

Easy app-controlled measurement of temperature and differential pressure : With the testo Smart Probes in the practical HVAC kit, you are fully flexible. Together with the testo Smart App, all measurement values from your parallel measurement are sent directly to your smartphone or tablet. This gives you an overview of all your data at all times – simply and clearly.

RECOMMENDED BY THE PROS:

This is what users say about the
testo 300 NEXT LEVEL

The combination of the testo 300 NEXT LEVEL and the testo App is user-friendly and time-saving. I need half an hour less time per customer.

Jovany David

·

Owner

New

Tipps & Tricks
for flue gas analysis

Everything you need to know to carry out measurement tasks on heating systems efficiently and safely – now available in our new practical guide to download free of charge.

Go to download

TESTO HEAT PUMP KITS

New times.

New toolkits.

Get ready for the new heating systems of today – and tomorrow: With Testo's smart manifolds, you are optimally equipped for all new technologies such as heat pumps, hybrid and geothermal systems. Fully networked, fully digital and fully simple. With the testo Smart Probes and the testo Smart App, vacuum, temperature, pressure and weight are also recorded faster, more wirelessly and conveniently than ever before.

RECOMMENDED BY THE PROS:

Testo's tools solve real problems
and make work much easier.

As we place a very high value on quality, we only use the latest technology in measuring and testing equipment. Testo is our perfect partner for all service assignments in the field of heating & cooling solutions.

Melano Hellwig

·

Field Support Engineer Team Leader Technical Service, Panasonic Heating & amp; Ventilation Air-conditioning Europe (PHVACEU)

FREE DOWNLOAD!

Heat pump knowledge

in four modules

Everything you need to make installation and maintenance easier – find out now in our free guide.

Go to download

Understanding heat pumps

Basic principles and main components

Planning and measuring correctly

And lots more!

The full picture – the best thermal imagers for modern heating systems

NEW! FOR PRACTICAL USERS

The new testo 860i wireless thermal imager for smartphones

Provides razor-sharp images quickly and easily in the testo Smart App. With direct display of Delta T and hotspots.

Find all the latest news, tools and trends:

in the HVAC/R magazine.

Get the free HVAC/R magazine with even more exclusive insights and perspectives, packed full of professional knowledge. Take a look and see for yourself.

The future is coming – to your home:
In the Testo newsletter.

Get even more exciting news, tool tips, offers and advice from’s Testo Smart World directly to your smartphone with our free newsletter.