flexibility@optimum

Versatile, customized, time-saving:
Master all challenges and achieve optimum flexibility with measurement technology and solutions from Testo.

Always at the optimum.
With Testo at your side

As a service technician, process engineer or facility manager, you face numerous challenges when monitoring, inspecting, maintaining and repairing equipment and systems.

  • Ensuring process reliability to minimize the risk of downtime

  • High time and cost pressures in the midst of staff and skills shortages

  • Extensive complexity due to a multitude of technologies and systems

  • Progressive digitalization

  • Strict standards and regulations, particularly with regard to sustainability and energy efficiency

As a partner to industry and technical facility management and with a view to the dynamic challenges, we support you with efficient and flexible measuring instruments and solutions and back you up with our expertise.

Mastering challenges
flexibility@optimum

No matter what. No matter where. No matter how complex. With precise, robust and intuitive measurement technology, automated processes, efficient workflows, simple data management and standard-compliant documentation , you can react flexibly and optimally to every scenario in your everyday life.

With Testo at your side, you can rely on versatile measuring instruments, customized solutions and time-saving services. So you can master all challenges. Always flexible. Always at the optimum.

Ventilation and air conditioning measuring technology

Equipped for every measurement.
At ducts and outlets.
For indoor air quality and comfort.

Precise recording and analysis of a large number of climate parameters, long-term assurance of system consistency and compliance with relevant regulations: The requirements in air conditioning and ventilation technology are becoming both more diverse and more important. Our multifunctional climate measuring instruments and a comprehensive selection of wireless air velocity and IAQ probes address precisely these challenges and support you with full flexibility. So you can cope with any everyday scenario.

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  • Optimizing air quality and creating a comfortable climate

  • Increasing energy efficiency and reducing operating costs

  • Ensuring and complying with standards and regulations

Flexible all-rounder
testo 400 universal climate measuring instrument.

The testo 400 is the universal measuring instrument for every HVAC pro. Measure, analyze and document all IAQ and comfort level parameters using just one instrument – simply, conveniently and in compliance with the standards. High-quality measuring technology, intuitive measurement assistants, versatile documentation options and a comprehensive selection of wireless air velocity and IAQ probes make the testo 400 the versatile partner for your day-to-day work.

Compact alternative
testo 440 multifunctional measuring instrument

The compact testo 440 enables precise and reliable measurement of all climate-relevant parameters, adjustment of air conditioning and ventilation systems, monitoring of air quality or comfort measurements. Thanks to the wide range of combination options with high-quality digital probes, you are optimally equipped for any measuring task.

Immediately ready. Flexibility in the kit

Practical products and smart solutions that make you even more flexible.

Bestseller

testo 417

100 mm vane anemometer

Measure air velocity, volume flow and temperature simultaneously, both at air inlets and air outlets.

Bestseller

testo 416

16 mm vane anemometer

For flexible flow measurements at air outlets and in ventilation ducts. The fixed-cable telescope can be extended up to 850 mm.

Bestseller

testo 425

Hot wire anemometer

For flow measurements at air outlets and in ventilation ducts. The fixed-cable telescope can be extended up to 820 mm.

Highlight

testo 420

Volume flow hood

Lightweight, fast, convenient: Many practical functions and the detachable measuring instrument make measuring tasks on ceiling vents easier.

Air balancing

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Air balancing

PRO measuring program for quick and easy balancing of ventilation systems. New in the testo Smart App!

Refrigeration measurement technology

Be versatile and remain precise.
Optimum application flexibility for refrigeration technology.

In refrigeration technology, one thing counts above all else: Generating precise measurement results with as little effort as possible. This is exactly what our measuring instruments are designed for. With smart technology and high application flexibility, you save time and effort while increasing the quality and precision of your measurement results. With our broad portfolio and perfectly networked solutions, you are prepared for every scenario. Be it for installation, maintenance or repair. With Testo at your side, you have maximum versatility and generate precise measurement results with minimum effort.

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Professional for professionals
testo 570s digital manifold

The optimum solution for long-term measurements on refrigeration and air conditioning systems. Thanks to data logging and intelligent error analysis in the testo Smart App, anomalies can be detected quickly and reliably. testo 570s boasts the world's longest runtime of up to 360 hours, a large data memory and a high degree of measuring accuracy, making it a reliable partner for every challenge.

This is what users say about the testo 570s

Recommended by the professionals:

Because the testo 570s connects directly to the smartphone, I can keep an eye on the ventilation system on the computer and at the same time see what the refrigeration system is doing on my cell phone. It really saves me time. What's more, the long battery life means I don't have to worry about charging it all the time.

Andreas Becker

·

Rox Klimatechnik GmbH

Flexible bestseller
testo 557s digital manifold

Fully networked: With the testo 557s digital manifold, you can carry out all measurements flexibly and wirelessly. The measurement results can be easily read and evaluated on the large graphic display. In conjunction with the testo Smart App, you always have the latest refrigerants thanks to automatic updates.

Testo kits – ready, set, go!

Product innovations
that get you flexibly to the optimum.

Clamp meter

testo 770-3

Now with higher precision in the lower current range

The new testo 770-3 clamp meter is ideal for demanding measuring tasks in tight application environments. The movable pincer arm enables the instrument to grab tightly packed cables in a particularly accurate way.

Vacuum pump

testo 565i

Now evacuate fully automatically

The new testo 565i vacuum pump automatically stops the evacuation of refrigeration systems when the desired vacuum target value is reached and simultaneously starts a vacuum holding test.

Simply pair and measure:
Wireless probes with smartphone operation

Vacuum probe

testo 552i

Practical vacuum probe

For wireless, hose-free vacuum measurements on refrigeration and air conditioning systems using just only one service port – with no loss of refrigerant.

High pressure measuring instrument

testo 549i

Compact high pressure gauge

For service and fault detection on air conditioning and refrigeration systems and for the automatic calculation of evaporation and condensation temperatures.

Clamp thermometer

testo 115i

Flexible clamp thermometer

Temperature measurements at remote measuring points can be conveniently carried out with the wireless clamp thermometer.

Thermohygrometer

testo 605i

Thermohygrometer with angled probe head

Measure air temperature and humidity in rooms and ducts. The angled probe head enables a high degree of application flexibility.

Thermometer

testo 915i

Thermometer with immersion/penetration probe

For faster, more flexible and simpler temperature measurements in liquid, semi-solid and pasty media.

The App for all applications

The free testo Smart App makes you even more flexible. It combines all applications on your smartphone and provides valuable support for commissioning and maintaining refrigeration, air conditioning and heating systems. The testo Smart App makes carrying out and documenting all necessary measurement tasks faster, easier and more reliable:

  • Optimally mobile: Second screen function on tablet or smartphone

  • Optimally straightforward: Automatic Bluetooth pairing & easy configuration

  • Optimally practical: Control of the measurement and monitoring of live measurement data

  • Optimally digital: Easy creation and sending of measurement reports

Parallel measurement

Efficient and reliable

Documentation

Uncomplicated and reliable

Customer data management

Fast and uncomplicated

Data transfer

Professional and convenient

Second screen

Simply convenient

Remote control

Easy and versatile

Heating measurement technology

Versatile and precise.
Heating measurement technology at the next level.

Everyday working life is becoming increasingly demanding, time is getting shorter and processes are becoming more complex. Testo's precise heating measurement solutions take you to the next level of flexibility. With an extensive portfolio, customized solutions and versatile kits, you are optimally equipped for all measuring tasks on all heating systems. The testo Smart App supports you in carrying out and documenting all necessary measurement tasks. You do your job even more professionally, reliably and quickly.

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  • Everything for professional flue gas analysis on gas, oil and solid fuel systems.

  • Full flexibility for the installation and maintenance of heat pumps and hybrid systems.

  • Free testo Smart App for even more flexibility when carrying out and documenting all measurement tasks.

Simply for everything.
testo 300 NEXT LEVEL flue gas analyzer

Optimum for professional flue gas analysis on gas, oil and solid fuel systems. Ideal for the most important measurements, such as flue gas, draught, pressure, ambient CO and differential temperature. The testo 300 NEXT LEVEL combines decades of measurement technology experience, robust workmanship, and time-saving, digital functions in one instrument.

Why make things complicated

when you can keep them simple?

Did you know that the testo 300 NEXT LEVEL enables the wireless measurement of up to four additional parameters? Simply pair the smart probes and measure. With a practical second screen on your smartphone and intuitive operation, you can keep an eye on all measurement data at all times.

Smart probes for wireless parallel measurement – with smartphone operation.

Wireless probe

testo 510i

Differential pressure measuring instrument

Pocket-sized temperature and air density-compensated differential pressure measurement. Easy viewing and dispatch of readings on a smartphone.

Wireless probe

testo 915i

Thermometer with immersion/penetration probe

For fast, flexible and easy temperature measurements in liquid, semi-solid and pasty media.

Bestseller

HVAC set

testo Smart Probes HVAC kit

Wireless, versatile, easy to use: The HVAC kit offers everything for fast and flexible temperature measurement as well as differential pressure measurement.

Always the right tool.
Versatile kits for heat pumps and hybrid systems.

For professionals
testo 570s – professional heat pump kit

Carry out your everyday work on heat pumps wirelessly, easily and reliably. Thanks to the Bluetooth vacuum probe supplied, you can even measure vacuum without any cables or hoses. All data can be viewed on the large graphic display or on your smartphone or tablet via the testo Smart App.

testo 557s – heat pump all-rounder kit

The complete solution for commissioning and servicing heat pumps, including digital manifold with 4-way valve block and probe for wireless vacuum measurement.

testo 550s – heat pump starter kit

With this kit, including manifold with 2-way valve block, you can carry out your daily work on heat pumps wirelessly, easily and reliably.

Check it out

Have you seen the
Industry Magazine?

Measuring technology and solutions for all applications in industry and technical facility management, clear and informative, online and available to download.

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Preventive maintenance

HVAC/R

Indoor air quality / comfort level

Indoor climate monitoring

Emission measurement

And lots more!

Industrial emission measurement

Extremely flexible.
Achieve optimum efficiency as required.

Careful flue gas analysis is essential to reduce emissions, energy consumption and costs, and to comply with strict regulations to protect people and the environment. Precisely for these challenges, Testo has developed flue gas analyzers which are highly flexible even under extreme conditions and support you in achieving optimum efficiency as required.

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Versatility for the highest demands
testo 350 flue gas analyzer

Day after day, the testo 350 meets the highest demands in industrial emission measurement: With its ability to fulfil a wide range of measurement and analysis tasks, it is not only impressive because of its heavy-duty industrial design, but also because of its suitability for complex data acquisition. The testo 350 therefore stands for flexibility in handling and optimum system efficiency.

More flue gas analyzers
optimized for industrial emission measurement

Handheld measuring instrument

testo 340

testo 340 – the ideal portable instrument for industrial flue gas analysis

Thanks to its especially compact design, reliable technology and maximum mobility, it is the perfect tool for international service jobs and the commissioning and inspection of industrial combustion and power generation plants.

testo 300 NEXT LEVEL – flue gas analysis smarter than ever before

TÜV-certified testo 300 NEXT LEVEL impresses with its flexibility, efficiency and smart technology. It enables wireless measurement in conjunction with the testo Smart Probes, and simple and intuitive documentation directly on site. It is also possible to send the measurement data by e-mail.

Data monitoring

Everything always in view.
Flexible monitoring for reliable processes.

Stand-alone, via WLAN or cloud-based: With our broad portfolio of data loggers and online monitoring systems, we offer the right solution for every application. For you, this means the greatest possible flexibility for monitoring production and storage or cold storage rooms as well as the indoor climate in your offices. We would be happy to advise you!

Data logger product consultant

Stand-alone

Data loggers

Loggers for data acquisition in all environments

Temperature, air humidity, UV, indoor air quality... When values in the air need to be measured in industry, our versatile portfolio of data loggers comes into play.

WLAN logger

testo Saveris 2

Radio data logger with display and integrated NTC temperature probe

Reliably record temperatures in storage, cold storage and work rooms over long periods of time and call them up directly via WLAN with an internet-enabled smartphone, tablet or PC, anytime and anywhere.

Preventive maintenance

Every image is a win.
Security of supply for your industrial plant.

Regular checks and inspections are essential to ensure energy generation and distribution. Thermographic measurements with Testo thermal imagers provide valuable and reliable support. The inspections can be carried out very flexibly during operation, from a distance and even in places that are difficult to access. Critical components or connections are checked. In the event of anomalies, measures can be taken in good time.

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Full flexibility in a kit
testo 883-1 kit

The testo 883-1 thermal imager features the best image quality plus useful features for image management, contrast adjustment and documentation. Enjoy the benefits that the kit offers: Thanks to the 12° x 9° telephoto lens, spare battery and battery-charging station, you’ll be ready to start straight away and ideally equipped – especially for carrying out measurements at greater distances and for long measuring applications.

Convincing alternatives for ensuring the safety of electrical systems.

Bluetooth

testo 872

testo 872 thermal imager – smart and networked

With an IR resolution of 320 x 240 pixels, it is ideal for a wide range of applications. At the same time, it guarantees quick and easy working and ensures wireless communication with mobile devices via WLAN.

testo 770-3 – clamp meter with Bluetooth®

The new testo 770-3 clamp meter is ideal for demanding measuring tasks in tight application environments. As the most powerful model, it offers a great deal of flexibility: All important current parameters can be measured without contact.

CONNECTIVITY

Optimized workflows:
With the testo Smart World

Networked measuring technology, seamless compatibility and innovative Apps – the testo Smart World opens up unimagined possibilities in data management, cost efficiency and ensuring optimum system availability.

  • Data management: Data forms the basis of every informed decision. Testo's high-precision measuring technology provides you with the exact information you need for sustainable optimization. Fast, precise and in real time.

  • Process optimization: By automatically monitoring critical environmental parameters such as temperature and humidity and being reliably alerted when limit values are exceeded, you can reduce manual work steps and achieve significant efficiency gains at the same time.

  • Cost efficiency: By digitally recording, analyzing and documenting critical parameters, you can optimize the use of your resources and thus leverage potential savings.

Become part of the testo Smart World.
Browse the Industry Magazine now.

Top tips, top tools, top news:
The new Industry magazine.

For those who want an overview: Get the free Industry Magazine for an overview of the entire range of measurement technology and solutions for all applications in industrial environments and in technical facility management.