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    Heating technology

    Electrical measurement parameters

    The innovative electrical measuring instruments from Testo stand out due to their extraordinary high level of user-friendliness, setting new standards with intelligent and completely new technology. Digital multimeters with automatic measurement parameter recognition, clamp meters with a unique grab mechanism or voltage testers that also measure current – this is what electrical measuring technology is all about

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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

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    Product brochure

    Electrical measuring instruments

    testo Smart App

    Welcome to the testo Smart World: The whole world in one App.

    Faster, easier, smarter: The testo Smart App brings all tools and measurements together - and documentation can also be dealt with conveniently using a smartphone or tablet. Benefit from intelligent connectivity and the unique all-in-one solution for all applications. So that not only the jobs on all heating systems are carried out smartly and effortlessly.

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    Parallel measurement

    Efficient and safe

    Documentation

    Uncomplicated and safe

    Customer data management

    Quick and easy

    Data transfer

    Professional and comfortable

    Second Screen

    Simply comfortable

    Remote Control

    Simple and flexible

    Other applications

    Flue gas analysis

    Exhaust and flue gas measurement on heating systems and other small combustion plants is used to determine the level of pollutants emitted and the heat energy lost.

    • The atmosphere should be contaminated by pollutants as little as possible.

    • Energy should be used as efficiently as possible.

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    Tips & tricks

    Carry out measuring tasks on heating systems efficiently and safely

    Download the exclusive practical guide for free now.

    To download

    Checking the gas connection pressure

    Setting the gas-air ratio

    Preparing the flue gas analyzer

    Determining the flue gas loss

    Calculating the efficiency (η)

    And much more ...

    All about heating measuring technology

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    Our services

    Contact us

    Do you have any queries, or would you like a personal consultation?
    We would be happy to help you.

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    Customer Service

    If you experience any malfunctions, please send in your measuring instrument with a brief description of the fault. Please also give us your telephone number for any inquiries. Normally, you’ll get your measuring instrument back within one week.

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    Calibration

    Our subsidiary company Testo Industrial Services supports you daily in ensuring quality while always adhering to the relevant norms and guidelines. You get all the services you need from one provider.

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    Check it out

    The new
    HVAC/R magazine is here!

    Find all the latest news, tools and trends: get our free HVAC/R magazine and find out everything about the big trends in industry. Benefit from exclusive professional tips, and gain fascinating insights into the testo Smart World.

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    The top trends in the industry

    Special report: heat transition

    Exclusive professional tips

    Automation vision

    And lots more!