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    • Thermo Scientific

    Thermo Scientific RadEye PRD4 – Personal Radiation Detector with Neutron Indication

    The Thermo Scientific RadEye PRD4 personal radiation detector offers highly sensitive gamma and neutron radiation detection with minimal nuisance alarms. Ideal for first responders and security personnel, it ensures fast, accurate dose rate monitoring and threat identification.

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    Description

    RadEye PRD4

    Thermo Scientific

    The Thermo Scientific RadEye PRD4 is a next-generation personal radiation detector (PRD) built for high-throughput scanning and fast decision-making in the field. Designed for use by first responders, law enforcement, and nuclear security teams, the PRD4 combines exceptional sensitivity with advanced background rejection—allowing professionals to act with confidence while minimizing false positives.

    At the core of the PRD4 is Natural Background Rejection (NBR) Technology, which filters out fluctuations in naturally occurring radioactive material (NORM), letting users focus only on credible threats. Its neutron indication capability adds a critical detection layer for identifying special nuclear material (SNM), improving overall situational awareness in high-risk environments.

    Compact and easy to use, the RadEye PRD4 also supports configurable alarm thresholds and user modes, making it adaptable for teams of varying experience levels.

    Features

    • No retraining or relearning for infrequent users

    • Get results automatically, without the need to press buttons

    • Quickly guides you through next steps after an alarm

    • Simple 4 button design

    • Comprehensive data neatly organized and presented on screen

    • Can be worn in holster or standard service belt

    Neutron Alert

    The neutron capability of the RadEye PRD4 personal radiation detector provides an additional layer of detection capability that is critical in determining the level of the radiation threat or problem.


    In Field Calibration

    The ability to calibrate the units in the field saves on down time and extra inventory to support costly turn-in/replacement resources.


    Personalized for each user

    Configure the RadEye PRD4 personal radiation detector as a simple 0 to 9 radiation level gauge Or turn on dose rate readings, simplified gamma Natural and Artificial classification, or basic count rate mode


    Stay Focused

    With advanced NBR, agencies have seen nuisance alarms due to granite, natural stone and subway tiles reduced by 80% after deploying the RadEye PRD4 without increasing alarm thresholds or sacrificing sensitivity.


    Specifications

    General

    Battery Type
    2 x AAA alkaline or rechargeable NiMH
    Battery Life
    >170h (alkaline)
    Weight (including batteries and rubber sleeve)
    189g
    Water/Dust Rating
    IP65
    Drop Tested
    1.5 m on concrete (with rubber sleeve)
    Operating Temperature
    -4°F to 122°F (-20°C to 50°C)
    Dimensions
    4.1 x 2.6 x 1.6 inches (with rubber protective sleeve
    Wireless Communications
    Bluetooth 4.0 (Option)
    Wired Communications
    USB to IR

    Low dose rate detector

    Material
    CsI(Tl)
    Sensitivity
    200 cps per µSv/h
    Energy Range
    58 keV – 6 MeV: for dose and dose rate measurement
    20 keV – 6 MeV: for count rate (pager function)
    Dose Rate Range
    10 nSv/h – 250 µSv/h (1 µR/h – 25 mR/h)
    NBR (Natural Backgroun Rejection)
    Advanced Algorithms

    High dose rate detector

    Material
    Patented scintillator
    Sensitivity
    25 cps per mSv/h (0.25
    cps per mR/h)
    Energy Range
    58 keV – 6 MeV: for dose and dose rate measurement
    20 keV – 6 MeV: for count rate (pager function)
    Dose Rate Range
    250 µSv/h – 10 Sv/h (25 mR/h – 1000 R/h)

    NBR

    Without NBR
    Higher threshold for alarm
    Numerous alarms, most due to natural radiation
    Nuisance for operator, may ignore
    With NBR
    Higher threshold for alarm
    No false alarms
    Only alerts to artificial sources
    Operator knows to act

    Resources

    PRD 4 Brochure

    Media

    Thermo Scientific RadEye SPRD

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