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
The GQ GMC-600 Pro is the better geiger counter overall, rated 3.4 to 2.6. The GQ GMC-600 Pro leads on features, sensitivity and price. The GQ GMC-600 Pro costs $592.76 less ($298 vs $890.76).
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.
Radiation Alert Monitor 4EC
An analog survey meter for people who prefer a needle to a number. It costs a lot for what it measures.
Amazon $890.76$890.76
Which should you buy?
- Choose the GQ GMC-600 Pro for features (data logging, phone or cloud connection vs none of the listed features), sensitivity (348 CPM per µSv/h (Co-60) vs 100 CPM per µSv/h) and price ($298 vs $890.76).
Scores side by side
Each factor is scored 0-100 against the same fixed reference points for every alpha-beta-gamma counters geiger counter; a clear win is highlighted. How we rank explains each one.
| Factor weight | GQ GMC-600 Pro | Radiation Alert Monitor 4EC |
|---|---|---|
| Overall rating | 3.4/5 | 2.6/5 |
| Sensitivity 25% | 42 348 CPM per µSv/h (Co-60) | 15 100 CPM per µSv/h |
| Radiation types 20% | 100 gamma, X-ray, beta, alpha | 100 gamma, X-ray, beta, alpha |
| Dose-rate range 15% | 54 reads up to 4,250 µSv/h | 23 reads up to 500 µSv/h |
| Features 15% | 70 data logging, phone or cloud connection | 0 none of the listed features |
| Price 15% | 43 $298 | 4 $890.76 |
| Warranty 10% | 0 warranty not published, scored as none | 33 1-year warranty |
Specifications
| GQ GMC-600 Pro | Radiation Alert Monitor 4EC | |
|---|---|---|
| Detection | ||
| Detector | Mica window GM tube | Mica window GM tube |
| Tube or crystal | LND 7317 pancake | energy-compensated GM tube with mica window |
| Radiation types | α β γ X | α β γ X |
| Sensitivity | 348 CPM per µSv/h (Co-60) | 100 CPM per µSv/h |
| Max dose rate | 4,250 µSv/h | 500 µSv/h |
| Energy range | from 10 keV | from 10 keV |
| Gamma spectrum | No | No |
| Features | ||
| Data logging | Yes | No |
| Connection | Wi-Fi | None |
| Battery | 3.7 V rechargeable Li-ion | 9 V |
| Battery life | - | 2,000 h |
| Build | ||
| Weight | - | 231 g |
| Warranty | - | 1 year |