The GWL 10m is an accumulator operated doserate alarm unit, independent of mains supply, for the detection of gamma radiation and X-rays. The instrument has four alarm thresholds, triggering optical and acoustic alarm when being exceeded. The acoustic alarm can be switched off, if required.

The instrument, designed for operations in “heavy-duty” environments, is EMC-proof and equipped with a robust and splash-proof housing. The GWL 10m is preferably used for room monitoring and for the determination of restricted areas, where a given doserate has been achieved.

The GWL 10m is supplied together with a recharger unit for recharging the built-in accumulator.

Optional accessories:

  • robust tripod
  • motion sensor triggering an acoustic alarm when a person approaches towards a danger zone with increased radiation level

Technical Data

Type of radiation:

gamma radiation / X-rays (DC installations)


GM-tube with energy filter

Measuring size:

ambient doserate equivalent H*(10)

Alarm thresholds:

7,5 µSv/h, 25 µSv/h, 1 mSv/h, 10 mSv/h

Acoustic alarm:

> 93 dB(A) measured in 30 cm distance

Energy range:

40 keV – 1,3 MeV

Temperature range:

-30°C up to +60°C

Power supply:


(Operating time with fully charged accumulator: approx. 48 hours, without acoustic warning)


Aluminium combined with high impact plastic

Dimensions / Weight:

(120 x 120 x 250) mm / approx. 2300 g

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