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
The Radiacode Zero is the better geiger counter overall, rated 3.4 to 2.3. The Radiacode Zero leads on features and dose-rate range. The AKSTEST HFS-50-CsI wins on price. The AKSTEST HFS-50-CsI costs $149.01 less ($149.99 vs $299).
Prices were last checked November 9, 2026. Product prices and availability are accurate as of that date and are subject to change; the price and availability shown on Amazon or the retailer's site at the time of purchase apply. As an Amazon Associate we earn from qualifying purchases.
AKSTEST HFS-50-CsI
A low-cost scintillation dosimeter for general monitoring. Too little is published to rank it with the Radiacodes.
Amazon $149.99$149.99
Which should you buy?
- Choose the Radiacode Zero for features (data logging, phone or cloud connection vs none of the listed features) and dose-rate range (reads up to 9,000,000 µSv/h vs reads up to 20,000 µSv/h).
- Choose the AKSTEST HFS-50-CsI for price ($149.99 vs $299).
Scores side by side
Each factor is scored 0-100 against the same fixed reference points for every scintillation and solid-state geiger counter; a clear win is highlighted. How we rank explains each one.
| Factor weight | Radiacode Zero | AKSTEST HFS-50-CsI |
|---|---|---|
| Overall rating | 3.4/5 | 2.3/5 |
| Sensitivity 25% | 64 960 CPM per µSv/h | 0 sensitivity not published, scored as lowest |
| Radiation types 20% | 0 gamma, X-ray | 0 gamma, X-ray |
| Dose-rate range 15% | 100 reads up to 9,000,000 µSv/h | 77 reads up to 20,000 µSv/h |
| Features 15% | 70 data logging, phone or cloud connection | 0 none of the listed features |
| Price 15% | 43 $299 | 67 $149.99 |
| Warranty 10% | 67 2-year warranty | 0 warranty not published, scored as none |
Specifications
| Radiacode Zero | AKSTEST HFS-50-CsI | |
|---|---|---|
| Detection | ||
| Detector | Scintillator | Scintillator |
| Tube or crystal | organic plastic scintillator | CsI scintillator |
| Radiation types | γ X | γ X |
| Sensitivity | 960 CPM per µSv/h | - |
| Max dose rate | 9,000,000 µSv/h | 20,000 µSv/h |
| Energy range | 30 to 3,000 keV | - |
| Gamma spectrum | No | No |
| Features | ||
| Data logging | Yes | No |
| Connection | Bluetooth | None |
| Battery | 1500 mAh rechargeable | 2000 mAh rechargeable, USB-C |
| Battery life | 200 h | 1,700 h |
| Build | ||
| Weight | 76 g | - |
| Ingress rating | IP64 | - |
| Warranty | 2 years | - |
| Released | 2026 | - |