
AlphaE
Ultra-small radon meter for concentration, personal exposure and dose
- Detector type
- Diffusion chamber with silicon diode
- Measurement range
- 20 Bq/m³–10 MBq/m³
- Weight
- 165 g

Bild: Bertin
Radon monitor using alpha spectroscopy
Bertin AlphaGUARD – radon monitor using alpha spectroscopy from Bertin Technologies. Weight including battery: 6.2 kg.
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.
| Chamber volume | 0.62 L1 |
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| Radon range | 2–2,000,000 Bq/m³ (depending on product version)2 |
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| Detector sensitivity | 5 cpm at 100 Bq/m³1 |
| Storage capacity | Up to 60,000 measurement points1 |
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| Autonomy | 10 days in diffusion mode; 40 days with external battery1 |
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| Listed dimensions | 329 × 355 × 123 mm1 |
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| Additional sensors | Temperature, relative humidity and atmospheric pressure1 |
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| Weight including battery | 6.2 kg1 |
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| Measurement purpose | Continuous radon measurement with a pulse-counting ionization chamber1 |
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| Measurement principle | 3D alpha spectroscopy and current mode1 |
| Listed calibration error | 3 %1 |
| Data management | DataVIEW1 |
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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