Refrigeration technology

    Electrical testing

    Refrigeration and air conditioning systems along with heat pumps are electrical systems and are therefore subject to electrical testing in some cases. Whether this involves multimeters, clamp meters, current testers or voltage testers – thanks to innovative technologies and simplified application, Testo’s measuring instruments measure electrical parameters safely and precisely.

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    Multimeters, clamp meters and voltage testers from Testo

    • testo 760 digital multimeter: Recognizes measurement parameters automatically

    • testo 770 clamp meter: Get a good grip on cables – even when things are tight

    • testo 750 voltage tester: Easy to read from any position

    • testo 755 current/voltage tester: A voltage tester that also measures current

    • testo 745 non-contact voltage tester: Filters high-frequency interference

    Electrical 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

    Efficient and reliable testing of systems

    Vacuum gauges

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    Evacuating/ vacuum measurement

    Fully automatic evacuation and high-precision 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

    Thermometers

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    Temperature measurement

    Flexible temperature measurement of components and ambient air

    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

    All about refrigeration measuring technology

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    Practical guide

    Refrigeration knowledge in three modules

    Download the exclusive practical guide for free now.

    To download

    Understanding refrigeration systems

    Evaluating refrigerants

    Thermodynamics

    Main components of the compression refrigeration circuit

    Subcooling / Superheating

    And much more ...

    The digital manifolds in use

    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.

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

    HVAC/R magazine

    Just know
    what works.

    More news, more tools: In our free HVAC/R magazine, you can find out all about the major technological trends in the industry, get valuable professional tips and exciting insights into the testo Smart World.

    Go to download

    Trend radar:
    Technologies of the future

    The smartest manifold of all time

    New, smart refrigeration portfolio

    Exclusive professional tips

    And lots more!