Gamma-Only Personal Radiation Detector

A compact, security‑grade Personal Radiation Detector (PRD) for detecting and locating trace radiation, with audible/visual/vibration alarms and NORM suppression to reduce nuisance alerts. The /BT variant adds Bluetooth® to the free Polismart® app for remote view, GPS‑tagged tracks and quick exports.

Why teams choose this Personal Radiation Detector (PRD)

• High sensitivity with fast response (≈ 0.25 s) to changes in background.
• Built for duty: IP65, –40 °C to +50 °C, ≤ 200 g, AA battery (long runtimes).
• Operational clarity: 0–9 scale mode for quick threat sizing when units slow operators down.

How it works

A CsI(Tl) + SiPM detector provides high gamma sensitivity; the unit tracks dose rate and triggers alarms when set thresholds are exceeded. The /BT model streams data to Polismart for remote operation and case logging.

Key specifications

• Gamma sensitivity: 100 cps per µSv/h (¹³⁷Cs); 500 cps per µSv/h (²⁴¹Am)
• Dose‑rate range: 0.1 µSv/h to 300 µSv/h (± 30 %); search energy: 33 keV–3 MeV
• Size / mass: 87 × 72 × 32 mm, ≤ 200 g
• Ruggedness: IP65, –40 °C to +50 °C, 0.7 m drop
• Power: 1× AA; battery life ≥ 1,000 h (BT off), ≥ 500 h (BT on)
• Comms: USB; Bluetooth® 4.0 on /BT.

Typical applications

Police and border patrol, event security, first responders, anywhere a radiation pager is needed.