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    • FLIR

    FLIR identiFINDER R425 – Handheld Radionuclide Identification Device (RID)

    The FLIR identiFINDER R425 is a rugged, 360° gamma and neutron RID with advanced detection algorithms, remote operation, and unmatched performance in extreme fields.

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    Description

    identiFinder R425

    Next Generation Radionuclide Detection Device

    The FLIR identiFINDER R425 is the latest evolution in the world’s most widely deployed radionuclide identification device (RID). Designed to quickly locate, identify, and measure both gamma and neutron sources, the R425 delivers unmatched performance and real-time threat analysis for emergency response, environmental monitoring, and homeland security operations.

    Powered by Teledyne FLIR’s proven detection algorithms, the R425 adds hybrid identification techniques and advanced heuristics, ensuring greater accuracy and confidence in every mission—even in high-radiation environments where other systems fail. Built for the realities of real-world response, the identiFINDER R425 empowers teams to detect, assess, and act with confidence—anytime, anywhere.

    Features

    Better detection in all directions

    New cubic detector design, sourceless stabilization, advanced heuristics, and hybrid identification techniques enable high-performance detection in all directions; 3x more sensitive gamma and 2x more sensitive neutron detection.

    • New cubic detector design allows for high performance in all directions.

    • 3 x more sensitive gamma detection (G).

    • 2 x more sensitive neutron detection (GN).

    • Advanced heuristics and hybrid identification techniques.

    • Sourceless stabilization.

    • 15% lighter weight than the previous generation.

    Power through your mission

    IP67-rated, ergonomic design is 15% lighter than previous generations, while the exceptional 12-hour battery life provides the right balance for a variety of missions.

    • Internal battery lasts up to 12 hrs; additional power options include disposable or rechargeable batteries that are hot swappable and user-replaceable.

    • Ready in ≤ 20 seconds from cold start.

    • Fully enclosed solid-state detector.

    • IP67-rated.

    • Balanced, ergonomic design.

    • Sunlight-readable screen; visible through polarized glasses.

    Situational awareness and support

    Remote data viewing, operation, and reach-back is made possible through communication features including dual USB-C ports, Teledyne FLIR’s trusted web interface, the Teledyne FLIR RAD Mobile Application, and a universal API that enables integration with user-deployed networks.

    • Established FLIR GUI and 3-button control.

    • Remote data viewing, operation, and reach-back.

    • Dual USB-C ports and FLIR’s trusted web interface.

    • FLIR RAD Mobile App.

    • Universal API enables integration with user-deployed networks (Mobile Field Kit, ATAC, Sigma Edge, Safe Environment Gateway, etc.).

    • Built-in Bluetooth and GPS.

    Specifications

    Technology

    Technology
    Radionuclide identification device (RID); Gamma and Gamma/Neutron Models
    Gamma Detector
    45 x 45 x 45 mm cubic detector with silicon photomultiplier (SiPM)
    Neutron Detector
    27 x 58 x 5 mm moderated panels (2 each)
    Energy Range
    25 keV – 3 MeV
    Gamma Sensitivity
    1610 cps/μSv/h
    Neutron Sensitivity
    > 4 cps/nv
    Gamma Spectrum Length
    1024 channels
    Dose Rate Range
    100 nSv/h – 50 uSv/h ±10 %
    Dose Rate Range ID Mode
    0 nSv/h – 50 uSv/h
    Overload Dose Rate Range
    50 uSv/h – 10 mSv/h
    Stabilization
    Sourceless gain stabilisation
    Linearisation
    Real time linearization of gamma energy
    Typical Resolution
    ⋜7% FWHM at 662 keV (20°C)
    Service Interval
    5-year factory maintenance

    Sampling & Analysis

    Sample Introduction
    Absorption of EM gamma and neutron emissions
    Threats
    Detects neutron and gamma radiation emitted from natural occurrences in
    the environment, special nuclear material, industrial, or medical
    material
    Nuclide Identification
    According to ANSI N42.34
    Library Categories
    SNM, IND, MED, NORM
    Sampling and Analysis
    From a few seconds to minutes

    General Details

    Dimensions (L x W x H)
    235 x 100 x 95 mm
    Weight
    ⋜ 1.2 kg
    Enclosure and Protection
    Injection molded housing with overmold; rating IP67 according to IEC
    60529
    Operating Temperature
    -22 to 140 °F (-30 to 60 °C)
    Operating Humidity
    10 to 93%, non-condensing
    Storage Temperature
    14 to 95 °F (-10 to 35 °C)

    Interface & Power

    Display and Alerts
    2.7″ diagonal (400×240 pixels) screen; sunlight readable; visible
    through polarised glasses
    Communication
    USB-C (2x), Bluetooth (BLE 5.0)
    Data Storage
    8GB internal memory
    Training Requirements
    <10 mins for operator; 1 hour for advanced user
    Software
    On-board webserver software
    Data File Format
    According to ANSI N42.42
    Input Voltage
    100-240 AC (wall adapter and USB-C cable supplied)
    Battery Specification
    Internal Li-ion cells; additional user-selectable external battery (1
    each 16650 Li-ion or 2 each CR123); hot-swappable
    Cold Start Time
    ⋜ 20 seconds from cold start

    Resources

    R425 Datasheet

    Media

    Teledyne FLIR identiFINDER® R425 | Handheld Radiation Detection and Identification Device

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