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
3.0/5
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.
- Mica window GM tubeDetector
- α β γ XDetects
- 350 CPM per µSv/hSensitivity
- 1,100 µSv/hMax dose rate
Check price at Amazon$960.40
Price checked November 9, 2026. As an Amazon Associate we earn from qualifying purchases.
Pros
- Large pancake tube is highly sensitive for alpha and beta
- Runs more than 3,500 hours on one AA
- Two-year warranty
Cons
- No built-in data log
- Range tops out at 1,100 µSv/h
- Expensive
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 | Inspector Alert V2 |
|---|---|
| Detection | |
| Detector | Mica window GM tube |
| Tube or crystal | 45 mm pancake mica window GM tube |
| Radiation types | α β γ X |
| Sensitivity | 350 CPM per µSv/h |
| Max dose rate | 1,100 µSv/h |
| Gamma spectrum | No |
| Features | |
| Data logging | No |
| Connection | None |
| Battery | AA |
| Battery life | 3,500 h |
| Build | |
| Weight | 323 g |
| Warranty | 2 years |
Alternatives in this detector type
Radiation Alert Monitor 200
A compact professional survey meter that reads all four radiation types. Hobbyists get more sensitivity for less with a pancake-tube counter.
Amazon $799.95$799.95
Mica window GM tube107 CPM/µSv/h2,000 µSv/h
Gamma-Scout Rechargeable
A compact long-term logger for people who want months of readings. The missing sensitivity figure and high price hold it back.
Amazon $649$649
Mica window GM tube1,000 µSv/h
Compare
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