• Products

    Application area

    HVAC/RHeating technologyRefrigeration technologyVentilation and A/C systemsFoodPharmaIndustryOthers

    Flue gas / emission measuring devices

    Temperature measuring instruments

    + 3

    Pressure monitors

    + 3

    Data loggers and monitoring

    + 4

    CO2, CO, light, sound, rpm

    + 2

    Flow measurement

    Moisture meters

    Electrical measurement

    Thermal imaging cameras

    Other measuring instruments

  • Services

    Calibration and GxP services

    Customized probes

    Know-How-to: Downloads

  • Highlights

    See more. Know more. In seconds.

    Intelligently networked.100% control.

    A Touch Of Genius.

    Save time. Cut costs. In every measurement environment.

    Maximum safety. Convincingly simple.

    HVAC/R world of Testo

    Optimum plant efficiency

    A world class of its own

    Discover the unseen

    Made to make it easy

    Safe food

  • Company

    About Testo

    Testo worldwide

    Work at Testo

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0440 0950

Bracket

0440 0950
Bracket

  • testo 835-H1
    testo 835-H1 - Infrared thermometer plus moisture measuring
      :
      0560 8353
    • testo 835-T1
      testo 835-T1 - Infrared thermometer
        :
        0560 8351
      • testo 835-T2
        testo 835-T2 - Infrared thermometer
          :
          0560 8352
        • Contact
          Keystone Instruments
          2130 Leveriza Street
          1300Pasay City
          Philippines
          +63 2 8831 5056+63 2 8831 4013

          © 2025