Radiacode 103
The Radiacode for people who mainly want isotope identification in a pocket size. If you just want dose readings, the 102 is enough.
Amazon $319$319
Scintillator1,800 CPM/µSv/h1,000 µSv/h
2.3/5
A low-cost scintillation dosimeter for general monitoring. Too little is published to rank it with the Radiacodes.
- ScintillatorDetector
- γ XDetects
- 20,000 µSv/hMax dose rate
Check price at Amazon$149.99
Price checked November 9, 2026. As an Amazon Associate we earn from qualifying purchases.
Pros
- Scintillator with energy compensation for steadier dose readings
- Reads up to 20,000 µSv/h
- About 1,700 hours per charge with the screen asleep
Cons
- No published sensitivity, so it scores lowest on that factor
- Gamma and X-rays only
- No published warranty
How it scores
The rating comes from 6 measured or published factors, each scored 0-100 against fixed reference points for its detector type. How we rank explains each one.
Specifications
| Model number | HFS-50-CsI |
|---|---|
| Detection | |
| Detector | Scintillator |
| Tube or crystal | CsI scintillator |
| Radiation types | γ X |
| Max dose rate | 20,000 µSv/h |
| Gamma spectrum | No |
| Features | |
| Data logging | No |
| Connection | None |
| Battery | 2000 mAh rechargeable, USB-C |
| Battery life | 1,700 h |
Alternatives in this detector type
Radiacode Zero
A sensitive pocket dosimeter that still works in a real emergency. Choose it over a spectrometer if dose readings matter more than isotope identification.
Amazon $299$299
Scintillator960 CPM/µSv/h9,000,000 µSv/h
Aranet Radiation
A set-and-forget home radiation monitor with a long battery life and a tidy app. It is not a tool for checking samples.
Amazon $139$139
Solid-state sensor1,000 µSv/h
Compare
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