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    Refrigeration technology

    Ultimate Control,

    Maximum Precision.

    The NEW testo 558s digital manifold

    The new testo 558s digital manifold

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    testo 558s

    Simply smart

    Operate with the same ease as your smartphone: The intuitive touchscreen and large, high-resolution colour display enable faster and more seamless configuration and control. Enhanced data analysis features, including 30-minute trend charts and clear, easy-to-read graphs, ensure greater accuracy and reliability. Smart, efficient, and effortlessly simple.

    Find out more
    testo 558s digital manifold

    Clear visualization of measurement results for easy evaluation and reliable analysis

    Capacitive touchscreen

    Trend curve of different readings over 30 minutes

    Still with the option of operation via keypad

    Clear structure

    Touchscreen - Clear structure

    Easy configuration

    Touchscreen - Easy configuration

    Detailed results

    Touchscreen - Detailed results

    Dynamic Menus

    Touchscreen - Visual separation of different applications

    Favourites selection

    Touchscreen - Favourites selection

    The smartest manifold ever.

    Touchscreen, colour measurement graphics, intuitive and as easy to use as an app. Testo is revolutionising work on refrigeration, air conditioning and heat pump systems. This ingenious manifold handles all measuring tasks more easily, flexibly and quickly than ever before. Fully networked, compatible with all flammable A3 and A2L refrigerants and always ready for use.

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        Fully automatic.

        Fully networked.

        The vision of a smart, networked world that makes jobs easier is now a reality! Thanks to our decades of experience, we have managed to develop a portfolio of products that is designed so that all the tools work together seamlessly and all the applications are quick, easy and in some cases even fully automatic.

        All tools work together seamlessly

        Perfectly equipped for every refrigerant.

        • Compatible with flammable A3 and A2L refrigerants

        • 96+ refrigerants stored in the system

        • New refrigerants are added through OTA updates

        • Favourites selection of the most common refrigerants in the manifold

        More products
        Compatible with flammable A3 and A2L refrigerants

        As intuitive as it gets.

        With consistent precision.


        The testo 558s combines maximum precision and maximum flexibility in operation with ease of use –
        therefore it is setting new standards for all applications involving refrigeration, air conditioning and heat pump systems.

        testo 558s

        Automatic Bluetooth connection through auto-pairing

        Protection class IP 54

        Hybrid charging system consisting of rechargeable (USB-C) and non-rechargeable batteries

        High precision of 0.25 % fs over the entire measuring range (60 bar), including integrated temperature compensation

        Connection to the testo Smart App for easy documentation and fast sending of measurement reports

        Working on refrigeration and air conditioning systems has never been easier.

        We caught up with Chloe Jenning (@thecoolinggirl) of Delta T refrigeration to find out her thoughts on the NEW testo 558s digital manifold.

        testo Smart App

        The whole world.

        In one App.

        Easier, faster, smarter. The testo Smart App brings all the tools and measurements together – and the documentation can also be conveniently managed using a smartphone or tablet. Experience end-to-end connectivity, wireless measurements and all your data at a glance.

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        testo Smart App

        Display graphical measured value curve

        Intelligent error analysis

        Save measurement data

        E-mail dispatch of the report

        Configure your measuring instrument

        A wealth of expert knowledge

        for practical use.

        The complete refrigeration know-how

        Practical guide

        Go to download

        The complete refrigeration know-how

        Everything you need to know for your work on refrigeration systems

        Download now for free!

        Heat pump know-how

        Practical guide

        Go to download

        Heat pump know-how

        Get all the latest information on heat pumps in 4 modules

        Free to download.

        Didn’t find what you were looking for? Tell us your measurement job, we’re happy to help!

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