Refrigeration technology

Evacuating refrigeration systems

The professional and reliable execution of an evacuation is an indispensable work step before the initial commissioning or recommissioning of a refrigeration system. This ensures that there is no moisture, foreign gases, oil and refrigerant residues in the refrigeration system before charging.

Evacuating refrigeration systems with vacuum gauges from Testo

Automatic evacuations with the testo 565i smart vacuum pump

testo Smart App

One App for all applications

The testo Smart App guides you quickly and easily through measurements on refrigeration, air conditioning and heating systems.

Now new:

PRO measuring programs for increasing the efficiency of your applications

testo Smart App

Multifunctional

Compatible with all Bluetooth-enabled Testo measuring instruments

Efficient

Direct report dispatch by e-mail

Fast

All measurement values at a glance

Easy

Intuitive measurement menus

Clever

Free download, free use

NEW

PRO measuring programs

Further applications

Adjusting and testing refrigeration systems

Manifolds and Smart Probes

Find out more

Refrigeration circuit control

Commissioning and service - fast, flexible and precise

Charging refrigeration systems

Refrigerant scale

Find out more

Charging

Automatic and precise charging according to target value

Check electrical parameters on refrigeration systems

Electrical measuring instruments

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Electrical testing

Safe testing of all electrical parameters of equipment and components

Detecting leaks in refrigeration systems

Leak detectors

Find out more

Leak detection/ tightness testing

Reliable detection of the smallest leaks for all common refrigerants

Measuring temperature on refrigeration systems

Thermometer

Find out more

Temperature measurement

Flexible temperature measurement of components and ambient air

Everything around the topic of refrigeration measurement technology

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What’s new?

Measurement technology for heat pumps

With a digital manifold, you carry out the commissioning and servicing of heat pumps quickly, flexibly and precisely. The intuitive touchscreen, the clear visualization of the readings and the Bluetooth connection to the probes and testo Smart App all make measurement and documentation easier.

  • Pressure and temperature testing

  • Controlled refrigerant service

  • Easy tightness testing and evacuation

Carrying out measurements on heat pumps

The digital manifolds in use

With the testo 558s, the system density can be assessed easily and reliably, thanks to the clear visualization of pressure values and temperature compensation.

Thanks to the large colour display and wireless connection to the probes, all important parameters are visible at a glance. The 30-minute trend curves also ensure even more reliable analysis.

HVAC/R Magazine 02/2025

Free of charge, full of value.

Our latest HVAC/R magazine gives you insight into the most important technological trends in the industry – and the tools you need to stay ready for change. You’ll also find expert tips and real-world examples that help you work more efficiently with testo instruments.

HVAC/R magazine

Trend radar: smart tools, smart homes, smart data

AI and automation on site

Digital assistants in times of skilled labour shortages

Thermography meets heating technology

Field-tested tips from HVAC/R pros

Contact
Max Sievert A-S
Sagveien 21 A
0459Oslo
Norway
+47 22 99 20 90

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