Refrigeration technology

    Measuring temperature and humidity

    Temperature and humidity are both important test values during commissioning and also maintenance, for determining whether a refrigeration system or heat pump is in perfect condition.

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    Temperature and humidity measuring instruments

    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

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    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

    Other applications

    Manifolds and Smart Probes

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    Refrigeration circuit control

    Commissioning and service - fast, flexible and precise

    Vacuum gauges

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    Evacuating/vacuum measurement

    Professional and highly precise pressure measurement

    Refrigerant scales

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    Charging

    Automatic and precise charging according to target value

    Leak detectors

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    Leakage testing/tightness test

    Reliable detection of the smallest leaks for all common refrigerants

    Electrical measuring instruments

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    Electrical testing

    Safe testing of all electrical parameters of equipment and components

    testo 570s manifold

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    Long-term measurement

    World’s longest battery life of 360 hours and large data memory

    What’s new?

    Measurement technology for heat pumps

    At Testo, you’ll find the right measurement technology for a cost and energy efficient operation of heat pumps. You also make sure the environment isn’t burdened by any leaked refrigerant.

    • Pressure and temperature testing

    • Controlled refrigerant service

    • Easy tightness testing and evacuation

    All about refrigeration measuring technology

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    Practical guide

    Refrigeration knowledge in three parts.

    Download our exclusive practical guide now for free.

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    Understanding refrigeration systems

    Evaluate refrigerants

    Thermodynamics

    Main components of the refrigeration cycle

    Hypothermia/overheating

    And much more ...

    What customers say about Testo digital manifolds

    What I’d like to tell other technicians is that this instrument really saves a lot of time, and you don’t have to take that much stuff along, you’ve got less to do yourself because the testo 557s does everything for you.

    Tom Siben

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    Service technician at Lennox

    We used to have to work with analog measuring instruments and needed a notepad, plus we needed external temperature probes. Testo has now incorporated all of that into one instrument. This makes it easier and much quicker for us to satisfy the customer with regard to the performance of their equipment.

    Peter van Vliet

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    Croonwolter&dros

    My first impression is very positive; a very nice, new measuring set that you certainly won’t regret purchasing as a refrigeration technician. I don’t think any other brand can compete with it.

    Marco Slump

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    Owner of Slump Heating and Refrigeration Technology, Appingedam (NL)