Electronic dosimeters are used to monitor the personal dose when handling radioactive substances. They measure gamma and X-ray radiation and allow the safe determination and display of the accumulated personal dose. They are small and robust and generate an audible as well as visual warning when the accumulated dose limits are exceeded. The measurand is the deep personal dose Hp(10) due to photon radiation. Dose meters are (colloquially) also called dosimeters, dose warners, alarm dosimeters or dose warning devices.


Overview of the dose meters in our product portfolio

Electronic personal dosimeter GRAETZ GPD150G

Compact, rugged and battery operated personal dosimeter with dose and dose rate warning function Hp(10). High reliability due to constant self-monitoring and easy to operate.

Electronic alarm dosimeter GRAETZ ED150

Compact, battery-operated personal dosimeter with dose rate display and warning functions. PTB type approved and therefore calibratable.

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Radionuclide Identifier (RID)

For detection of gamma, beta, neutron & cosmic radiation & more

Dose meters

Portable electronic devices with dose and / or dose rate warning functions

Dose rate meters

Portable electronic devices with dose rate detection, warning functions & more

Dose rate warning devices

Portable electronic devices with dose rate detection, warning functions & more

Contamination detection devices

Mobile devices for measuring radiation on surfaces


For range extension of measuring instruments


For measuring high dose rates from safe distance

Room monitoring monitors

Systems for dose rate measurement of gamma and X-ray radiation


Individual, for a wide range of industries

Fire brigades & Civil defence

Radiation protection measuring instruments for fire brigades and other civil protection organisations

Non-destructive testing (NDT)

Measuring instruments for X-rays and gamma radiation for testing materials

Nuclear Medicine

Radiation measuring instruments for MRT and CT X-ray systems in medicine


Measuring instruments for personal & local dose as well as contamination in various industries

Research & Education

Radiation meters for educational institutions, research institutes and laboratories


Maintenance, Repair, Calibration, Verification


We train you in the use of our measuring and warning devices


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GRAETZ - at a glance

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Measuring and warning devices for radiation protection

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From petroleum lamps to radiation measurement technology

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