The Guardian TPM905 is a pedestrian portal monitor that can be moved from location to location as needed. Compact and water resistant, this portal monitor automatically screens people and packages for radioactive sources in hospitals, laboratories, and transportation terminals or outside at open-air events and venues.


  • Portable pedestrian portal monitor

  • Gamma radiation detection

  • Cost effective

  • Easy to install and operate

Physical Specifications

  • Operating Configuration: Walk-through pedestrian monitor
  • Pillars: left and right; 1 panel per side
  • Number of Gamma Detectors: 2 detectors; 1 per pillar
  • Gamma Detector Material: Organic plastic scintillator detector
  • External Dimensions: 85 in H x 43 in W x 9 in D (216 cm H x 109 cm W x 23 cm D)
  • Pillar Weight: 90 lbs (40 kg) per system

Performance Specifications

  • Special Nuclear Materials (SNM) Detection: Meets ASTM C1169 Category II


  • Ports: Ethernet, Serial

Environment / Safety

  • Temperature: -4 °F to 122 °F (-20 °C to 50 °C)
  • Environmental Protection: IP65