GQ GMC-500+
The GQ to buy if you want a counter that keeps working at high dose rates. It suits emergency kits as well as everyday monitoring.
Amazon $128$128
GM tube138 CPM/µSv/h42,500 µSv/h
3.0/5
A cheap counter with a wide listed range for an emergency drawer. Its low sensitivity makes it a poor choice for checking samples.
- GM tubeDetector
- β γ XDetects
- 60 CPM per µSv/hSensitivity
- 50,000 µSv/hMax dose rate
Check price at Amazon$64.99
Price checked November 9, 2026. As an Amazon Associate we earn from qualifying purchases.
Pros
- Lists a very wide range, up to 50,000 µSv/h
- Readings download to a computer
- Large battery
Cons
- Lowest published sensitivity here, so readings are slow to settle
- Specs come only from the store listing
- 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 | FS5000 |
|---|---|
| Detection | |
| Detector | GM tube |
| Tube or crystal | J321 GM tube |
| Radiation types | β γ X |
| Sensitivity | 60 CPM per µSv/h |
| Max dose rate | 50,000 µSv/h |
| Energy range | 48 to 1,500 keV |
| Gamma spectrum | No |
| Features | |
| Data logging | Yes |
| Connection | None |
| Battery | 1800 mAh rechargeable lithium |
Alternatives in this detector type
GQ GMC-500
A good value desk or window monitor that posts readings online over Wi-Fi. Pick the 500+ if you want readings at very high levels.
Amazon $118$118
GM tube138 CPM/µSv/h4,250 µSv/h
FNIRSI GC-01
A cheap pocket Geiger counter for a curious first look at background radiation. Serious users will want more sensitivity and logging.
Amazon $51.29$51.29
GM tube80 CPM/µSv/h
Compare
Compare the MOESAPU FS-5000 with any other geiger counter →
More from MOESAPU: every MOESAPU product ranked.