Professional measurement technology for daily measurement tasks

    With measuring instruments, solutions and services from Testo, you can be sure that you are always making the right decision.

    Professional measurement technology for daily measurement tasks

    With measuring instruments, solutions and services from Testo, you can be sure that you are always making the right decision.

    Professional measurement technology for daily measurement tasks

    With measuring instruments, solutions and services from Testo, you can be sure that you are always making the right decision.

    Professional measurement technology for daily measurement tasks

    With measuring instruments, solutions and services from Testo, you can be sure that you are always making the right decision.

    Professional measurement technology for daily measurement tasks

    With measuring instruments, solutions and services from Testo, you can be sure that you are always making the right decision.

    Professional measurement technology for daily measurement tasks

    With measuring instruments, solutions and services from Testo, you can be sure that you are always making the right decision.

    Professional measurement technology for daily measurement tasks

    With measuring instruments, solutions and services from Testo, you can be sure that you are always making the right decision.

    Professional measurement technology for daily measurement tasks

    With measuring instruments, solutions and services from Testo, you can be sure that you are always making the right decision.

    Professional measurement technology for daily measurement tasks

    With measuring instruments, solutions and services from Testo, you can be sure that you are always making the right decision.

    No matter how demanding your project may be, we can offer you the right solution.

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    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

    Find out more

    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

    Our service

    Contact

    Keystone Instruments

    2130 Leveriza Street
    1300 Pasay City
    Philippines

    +63 2 8831 5056
    +63 2 8831 4013
    sales@keystone-instruments.com

    Know-How

    To the download center

    Here you will find:
    tips & tricks,
    video tutorials,
    webinars,
    seminars,
    software

    This is Testo!

    In around 60 years of company history, Testo SE & Co. KGaA has written many large and small success stories.

    For over 60 years, Testo as a company has stood for stable growth. The basis for this success are our employees

    More information

    testo Solutions gmbH: Your solutions for the challenges of a connected world

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    Testo Industrial Services: Calibration, qualification and validation. More service and more security for your company.

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