Radiation Monitoring Devices The Ranger

Overview

The Radiation Alert Ranger is a high-performance handheld nuclear radiation detector engineered for laboratory-grade accuracy in a portable field instrument. It detects alpha, beta, gamma, and X-ray radiation with exceptional sensitivity. Features a graphic LCD with backlight and USB connectivity for data download via free Observer USB Software.

Key Specifications

• Detector: Internal Halogen-quenched GM tube with thin mica window (45mm diameter)
• Range: 0.001–100 mR/hr / 0–350
• 000 CPM / 0.01–1000 µSv/hr
• Energy: Alpha ≥2 MeV
• Beta ≥0.16 MeV
• Gamma/X-ray ≥10 keV
• Power: USB or 2×AA (≈800 hrs at background)
• Weight: 291g
• Accuracy: ±15% factory / ±10% NIST calibrated

Applications

• NORM contamination surveying
• Gross wipe counting
• Surface contamination surveys
• Scrap metal screening
• Regulatory inspections
• Low-energy radionuclide detection