Guardian™ Baghouse systems are trusted worldwide to detect and locate radioactive sources in steel and aluminum baghouse operations. Its superior nuclide identification ensures that the baghouse dust collected is free from radioactive contamination ensuring the integrity of the downstream supply chain.


  • Superior nuclide identification, detecting radioactive sources in baghouse dust

  • Integrates with Programmable Logic Controllers (PLCs) for control of other mill systems when nuclides are detected in the dust

  • Network ready, easily connects to the site network

  • Advanced analysis algorithms for high-sensitivity results with minimal nuisance alarms

Physical Specifications

  • Operating Configuration: Duct monitor
  • Panels: Parallel with duct
  • Number of Gamma Detectors: 1
  • Gamma Detector Material: NaI (Tl) sodium iodide
  • Panel Enclosure External Dimensions: 30 in L x 20 in W x 8 in D (76 cm L x 51 cm W x 20 cm D)
  • Panel Weight: 53 lbs (24 kg)

Performance Specifications

  • Gamma False Alarm Rate: Less than 1 per month


  • Inspection Mode: Spectroscopic
  • Ports: Ethernet

Environment / Safety

  • Temperature: -4 °F to 149 °F (-20 °C to 65 °C )
  • Humidity: 5 to 95% non-condensing
  • Environmental Protection: IP67