
HERMES UW
Submersible gamma spectrometer and dose-rate meter for pools
- Detector type
- LaBr₃(Ce³⁺) scintillator with SiPM for spectrometry; wide-range GM tube for dose rate
- Energy range
- 30 keV–2 MeV
- Weight
- Support frame <40 kg; probe <5 kg

Bild: ELSE NUCLEAR
Gamma spectrometry meter
A handheld instrument for gamma dose-rate and spectrometry measurements, designed to operate in strong magnetic fields.
Download product sheet (PDF)All values with references – for tender documents
Specifications checked against the manufacturer’s documents on 2026-10-16
The number after each value refers to the source listed below. Values are as published by the manufacturer; the exact configuration is always confirmed in our quotation.
| Detector type | 0.6 × 0.6 inch LaBr₃(Ce³⁺), SiPM1 |
|---|
| Energy resolution | 3.3% FWHM at 662 keV1 |
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| Energy range | 30 keV–2 MeV1 |
|---|---|
| Dose-rate range | 100 nSv/h to over 20 mSv/h1 |
| Dose-rate response | 90 cps/(µSv/h)1 |
| Battery life | Up to 12 h in power-save mode1 |
|---|
| Main unit dimensions | 156 × 191 × 92 mm1 |
|---|---|
| Probe dimensions | 180 mm length × 50 mm diameter1 |
| Weight | 2.3 kg1 |
| Operating temperature | 0–40 °C1 |
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| Measurement functions | Gamma dose rate, gamma spectrometry and nuclide identification1 |
|---|---|
| Magnetic field | Up to 3 T1 |
The data comes from the manufacturer’s published documents. Manufacturers may change specifications; the current configuration and performance are confirmed in the quotation.
The number after each value refers to the source listed below. Values are as published by the manufacturer; the exact configuration is always confirmed in our quotation.

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