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
The Radiation Alert Monitor 200 is the better geiger counter overall, rated 3.0 to 2.6. The Radiation Alert Monitor 200 leads on features and dose-rate range. The Radiation Alert Monitor 200 costs $90.81 less ($799.95 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 Radiation Alert Monitor 200 for features (data logging, phone or cloud connection (optional add-on) vs none of the listed features) and dose-rate range (reads up to 2,000 µSv/h vs reads up to 500 µSv/h).
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 | Radiation Alert Monitor 200 | Radiation Alert Monitor 4EC |
|---|---|---|
| Overall rating | 3.0/5 | 2.6/5 |
| Sensitivity 25% | 17 107 CPM per µSv/h | 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% | 43 reads up to 2,000 µSv/h | 23 reads up to 500 µSv/h |
| Features 15% | 52 data logging, phone or cloud connection (optional add-on) | 0 none of the listed features |
| Price 15% | 8 $799.95 | 4 $890.76 |
| Warranty 10% | 33 1-year warranty | 33 1-year warranty |
Specifications
| Radiation Alert Monitor 200 | Radiation Alert Monitor 4EC | |
|---|---|---|
| Detection | ||
| Detector | Mica window GM tube | Mica window GM tube |
| Tube or crystal | mica end-window GM tube | energy-compensated GM tube with mica window |
| Radiation types | α β γ X | α β γ X |
| Sensitivity | 107 CPM per µSv/h | 100 CPM per µSv/h |
| Max dose rate | 2,000 µSv/h | 500 µSv/h |
| Energy range | from 10 keV | from 10 keV |
| Gamma spectrum | No | No |
| Features | ||
| Data logging | Yes | No |
| Connection | Optional add-on | None |
| Battery | 2 x AA | 9 V |
| Battery life | 800 h | 2,000 h |
| Build | ||
| Weight | 181 g | 231 g |
| Warranty | 1 year | 1 year |