R500 is a multi-function digital nuclear radiation meter with a large flat spiral sensor made by the United States National Bureau of Standards. It has high sensitivity and can quickly detect the intensity of α, β, γ, and χ rays. It has a correction factor function, customers can adjust the correction parameters themselves; it provides an average time setting function, which greatly improves the reflection sensitivity. The R500 digital nuclear radiation meter conforms to ergonomics, the anti-saturation circuit can avoid electromagnetic interference, and has a safe calibration function, which can avoid radiation exposure of calibration personnel. The product has European CE certification and ISO9001 quality certification.
The R500 is a multi‑function digital radiation detector designed for a wide range of applications, including food safety, environmental monitoring, and industrial inspection. It features a high‑sensitivity 2‑inch spiral sensor, adjustable calibration factors, and a large LCD display with bar‑graph visualization.
The manual includes detailed specifications, optional accessories, a list of major nuclear accidents for context, and a comprehensive FAQ covering usage, alarm settings, and safety considerations. It also describes USB data export, battery operation, and certification details. This manual is written in Chinese.
| Radiation dose rate range | 0.01 nSv/h – 1000 nSv/h |
|---|---|
| Measurement range | 100 mR/hr |
| Pulse dose rate | 0–300 000 cpm, 0–5 000 cps |
| Cumulative dose range | 0.001 nSv – 999 Sv |
| Sensitivity (Cs‑137) | 3500 CPM/mR/hr |
| Sensor type | GM tube, effective diameter 45 mm, mica window density 1.5 mg/cm² |
| Output interface | USB computer connection (optional 100 m extension) |
| Average measurement time | Default 32 s, adjustable 2–120 s |
| Display | Large LCD with bar‑graph display |
| Alarm threshold (default) | 5 µSv/hr |
| Data storage capacity | 2000 measurements |
| Operating temperature | -40 °C to 75 °C |
| Weight | 450 g |
| Dimensions (L×W×H) | 300 mm × 90 mm × 40 mm |
| Power source | 3 AA batteries, up to 30 days continuous operation |
| Certifications | European CE, US FCC |
If you may encounter radiation in your environment—whether at work, in public places, or at home—the R500 detector helps you monitor and protect against potential contamination.
The R500 displays radiation exposure in µSv/h and mSv, with conversions to REM also provided.
The device sounds a beeping alarm that speeds up as radiation levels rise; the default alarm threshold is set to 5 µSv/hr but can be adjusted.
The default alarm threshold is 5 µSv per hour.