GQ GMC-600 Pro
The best value alpha-capable counter, with the same pancake tube as meters costing twice as much. A strong pick for checking surfaces, glass and minerals.
Amazon $298$298
Mica window GM tube348 CPM/µSv/h4,250 µSv/h
3.0/5
A compact professional survey meter that reads all four radiation types. Hobbyists get more sensitivity for less with a pancake-tube counter.
- Mica window GM tubeDetector
- α β γ XDetects
- 107 CPM per µSv/hSensitivity
- 2,000 µSv/hMax dose rate
Check price at Amazon$799.95
Price checked November 9, 2026. As an Amazon Associate we earn from qualifying purchases.
Pros
- Small mica window still reads alpha and soft beta
- Runs on two AA batteries for about 800 hours
- Light and pocketable
Cons
- Sensitivity is modest for the price
- Bluetooth costs extra
- One-year warranty only
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 | Monitor 200 |
|---|---|
| Detection | |
| Detector | Mica window GM tube |
| Tube or crystal | mica end-window GM tube |
| Radiation types | α β γ X |
| Sensitivity | 107 CPM per µSv/h |
| Max dose rate | 2,000 µSv/h |
| Energy range | from 10 keV |
| Gamma spectrum | No |
| Features | |
| Data logging | Yes |
| Connection | Optional add-on |
| Battery | 2 x AA |
| Battery life | 800 h |
| Build | |
| Weight | 181 g |
| Warranty | 1 year |
Alternatives in this detector type
Mazur PRM-9000
A well-built pancake survey meter for contamination checks and collectors. It is good, but it is expensive for what the tube delivers.
Amazon $699$699
Mica window GM tube350 CPM/µSv/h1,250 µSv/h
Medcom Inspector Alert V2
A trusted professional pancake meter for contamination surveys. It is worth it if you need the name; the GQ GMC-600 Pro does most of the same for far less.
Amazon $960.40$960.40
Mica window GM tube350 CPM/µSv/h1,100 µSv/h
Compare
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