AlphaE - Bertin Instruments

    AlphaE Radon Exposimeter


    AlphaE is a professional meter for Radon concentration, personal exposure and dose. This ultra-small and light-weight instrument comes with optional belt bag, alternatively for wall-mounting.

    AlphaE is an electronic handheld device for fast and time-resolved radon monitoring in buildings, outdoors and mines.
    Typically, 80 % of the final result is achieved after 2 hours (faster response for higher values). Due to its ultra-lightweight design and sophisticated features, AlphaE is highly suitable also for surveying the personal radon exposure and dose at workplaces.

    The AlphaE’s favourable price-performance ratio makes it also interesting for service companies engaged in radon assessment and mitigation as well as for users in private homes.
    Up to 6 months battery life allows long-term measurement without mains power. Permanent operations via mains supply are possible via USB port.

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    Reasons to choose AlphaE

    Ultra-lightweight design

    Sophisticated features

    Wide measuring range for professional use

    Up to 6 months autonomy

    Suitable software included


    • Diffusion chamber with silicon diode

    Measuring range:

    • 20 Bq/m3 … 10 MBq/3

    Instrument calibrator error:

    • 10%

    Sensitivity of detector:

    • 3 cph at 100 Bq/m3

    Measuring cycle:

    • Adjustable from 1 min to 12 hrs

    Storage capacity:

    • 8 500 data sets (ca. 6… 4 250 days, depending on set measuring cycle)


    • up to 6 months (rechargeable via USB)


    • USB, cable incl. charging unit

    Additional sensors:

    • Air temperature, humidity and pressure, tamper detection


    • 6 digit LCD + 5 digit alphanumeric, backlight


    • 108 x 68 x 30 mm3


    • 165 g


    • Aluminium

    AlphaE offers the following features to its users:

    • Fast measurements
    • Time-resolved measurement for the exact determination of radon
    • Ultra-small, light-weight with optional belt bag, alternatively for wall-mounting
    • Wide measuring range for professional, use up to 10 MBq/m3
    • Battery operation up to 6 months battery life
    • Cost-effective radon measurement for mitigation activities

    Based on a silicon diode diffusion chamber, the sensitivity of the detector is 3 cph at 100 Bq/m³.


    80 % of the final result is achieved after 2 hrs (faster response for higher values).


    Thus, also low radon levels below 100 Bq/m³ can be measured as specified by the latest World Health Organization recommendations.


    The calculation of dose is performed based on user-settable factors for equilibrium and dose conversion.

    Several options are available, according to customer needs:

    • Suitcase
    • Wall support
    • Belt Pouch
    • DataVIEW Light and DataVIEW PRO Software


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