Radiacode 110
The best detector for finding and identifying weak sources, from uranium glass to contaminated finds. Pair it with a high-range meter if you want emergency coverage.
Amazon $399$399
Scintillator4,620 CPM/µSv/h400 µSv/h
3.6/5
The Radiacode for people who mainly want isotope identification in a pocket size. If you just want dose readings, the 102 is enough.
- ScintillatorDetector
- β γ XDetects
- 1,800 CPM per µSv/h (Cs-137)Sensitivity
- 1,000 µSv/hMax dose rate
Check price at Amazon$319
Price checked November 9, 2026. As an Amazon Associate we earn from qualifying purchases.
Pros
- Sharper spectrum than the 102 makes isotopes easier to tell apart
- Readings settle in seconds
- Two-year warranty
Cons
- Same sensitivity as the cheaper 102
- No alpha
- Range tops out at 1,000 µSv/h
The Radiacode 100 series family
Every Radiacode 100 series model we rank, smallest first. Ratings compare each against its own detector type.
| Model | Detector | Rating | Price |
|---|---|---|---|
| Radiacode 102 | Scintillator | 3.7/5 | $249 |
| Radiacode 103 (this one) | Scintillator | 3.6/5 | $319 |
| Radiacode 110 | Scintillator | 3.7/5 | $399 |
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 | RC-103 |
|---|---|
| Detection | |
| Detector | Scintillator |
| Tube or crystal | CsI(Tl) crystal |
| Radiation types | β γ X |
| Sensitivity | 1,800 CPM per µSv/h (Cs-137) |
| Max dose rate | 1,000 µSv/h |
| Gamma spectrum | Yes |
| Energy resolution (662 keV) | 8.4 % |
| Features | |
| Data logging | Yes |
| Connection | Bluetooth |
| Battery | 1000 mAh rechargeable |
| Battery life | 200 h |
| Build | |
| Weight | 65 g |
| Warranty | 2 years |
Alternatives in this detector type
Radiacode 102
The cheapest way to get a pocket gamma spectrometer with a polished phone app. A great everyday detector for collectors and travellers.
Amazon $249$249
Scintillator1,800 CPM/µSv/h1,000 µSv/h
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
Compare
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