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    Newman Lane, Alton, Hampshire, GU34 2UR, United Kingdom

    World Leaders in Test and Measurement Technology

    Made up of over 34 subsidiary companies and working with over 80 distribution partners, Testo SE & Co. KGaA is represented on all five continents, employing over 3000 members of staff. We offer an extensive range of instruments for many parameters and applications including; Temperature, Humidity, Velocity, Gas analysis, RPM, Pressure, Light, pH, Sound and many more.

    HVAC-R: heating, ventilation, air conditioning and refrigeration.
    Process Industry: manufacturing industries, service companies and utilities.
    Food Sector: including food manufacture, transport, storage, distribution and retail.
    Thermal Imaging: for building surveys, maintenance, electrical inspections and production monitoring.

    Testo Compact Class - Made to make it easy.

    • Switch on, measure and go: Our new digital HVAC measuring instruments give you precise readings - easily and quickly.
    • Instruments for every job: air conditioning and ventilation, C02, lux, humidity, temperature and pressure.
    • Compatible with testo Smart App - Configure the instrument, display graphical measured value curve, save measurement data, documentation of work, E-mail reports and more.
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    Climate & IAQ Measurement

    Indoor air quality (IAQ) is measured by room temperature, humidity, Airflow, CO and CO2. Studies have repeatedly shown how poor air quality can lead to excessive fatigue, poor concentration and even health issues. This can be the difference between good staff productivity and inefficiency. Testo's line of IAQ measurement instruments help facility managers ensure HVAC systems are working properly.

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    Testo Data Loggers

    • Measurement parameters: temperature, humidity, pressure and CO2.
    • Both automated monitoring systems and standalone data loggers available.
    • Temperature measuring range from -200°C to +1000°C (testo 176H.)
    • Measurement data memory for up to 2,000,000 readings (testo 176H.)
    • Excel export function for programming the logger and data analysis.

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    The Smart World of Testo

    What makes us who we are? Take a look at our company video to get a taste of life at Testo.


    Air Quality Monitors

    Thermohydrometers for continuous measurement of indoor climate of work & living areas to determine temperature, humidity and dew point.

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    Thermal Imaging Cameras

    Detect thermal anomalies in mechanical & electrical systems early, perform non-contact inspections during operation, avoid expensive plant downtimes.

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    Testo Thermometers

    Temperature measurement made easy; with thermometers, temperature meters and digital thermometers for all requirements and applications.

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    Electrical Measurement

    Testo sets new standards in electrical measuring technology with our reliable and innovative multimeters, clamp meters and current/voltage testers.

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