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Onyx Radiation Detector

2.00 LBS
  • Product Description

    Born from the multinational response to the Fukushima nuclear radiation disaster, employing design and manufacturing expertise from around the globe,  Made in the USA by IMI, comes a revolutionary new radiation detector. It’s  called ONYX®.

    ONYX features a modern, streamlined look and the use of advanced  technologies, making it a one-of-a-kind pocket-sized Geiger Counter. It weighs only 7 oz.  (200g.) and measures a mere 5.1 X 2.6 X 0.9 in. (72 X 37 X 13 mm.) making it  easy to transport.

    Despite its compact size ONYX is capable of detecting  Alpha,  Beta and Gamma radiation with the same sensitivity as the IMI Inspector Alert™,  and like the IMI Inspector Alert™ V2, ONYX is optimized for surface  contamination measurements through use of its 2 in. pancake Geiger Mueller tube.   See photo at right of the back of the Onyx featuring the screened, mica end  window of the large GM tube.

    The ONYX has a six button touch sensitive keypad that allows for easy use of  a wide variety of functions such as graphic display of data, adjustment of audio  chirp, data logging, changing units of measurement and calibration.

    ONYX also  permits the user to upgrade the software running on the device to the latest  version using a simple internet download feature. The version being shipped with  the instrument is the most up to date. You will receive an email when new  versions are available for download. ONYXLink software will be available for  free download in the near future to support upgrades from OSX or Windows  computers.

    Data are easy to read in a variety of formats (milli-Roentgens per hour,  Counts per Minute, micro Sieverts per hour and Total counts) on the 128 X 128  color OLED display that measures 1.88 in. (47.9mm.) diagonally.

    In  addition, ONYX is designed to share data by using its mini-USB port, with  both the ONYXLink application and Mineralab's GeigerGraph and Radiation Network Windows software).

    One can also use the stereo 3.5mm jack to communicate with the Safecast or Geiger bot iPhone App (available for free at the Apple App Store).  Twitter data are transferred using QR code displayed on the OLED in combination  with a smart phone with a QR Code scanner.

    This item is in stock, and will typically ship out within 1 business day.

    Specifications for the Onyx:  

    Detector: Halogen-quenched Geiger-Mueller tube. Effective diameter  1.75″ (45 mm). Mica window density 1.5-2.0 mg/cm²; Detects Alpha, Beta, Gamma,  and X-radiation

    Display: 128×128 color OLED (Organic Light Emitting Diode)

    Operating Range: µSv/hr: .000 to 1,000, mR/hr: .000 to 100, CPM: 0 to  350,000

    Accuracy: ± 10% typical; ±15% maximum

    Alert Range: 0 to 99,999 CPM; Beeper sounds the alert when warning  level feature is activated

    Anti-Saturation: Readout holds at full scale in fields up to 100 times  the maximum reading

    Audio: Beeper chirps with each count when Geiger Beep function is  activated

    Averaging: Accumulate/Average feature builds average over time when  activated

    Certifications: CE Certified: Emissions: EN 55011:2009 + A1:2010  (Class B emissions limits); EN 61000-4-2:1995 (ESD); EN61000-4-3:1997. RoHS  Compliant, Meets WEEE standards

    Count Light: Red LED flashes with each count

    Calibration: Cesium-137 (gamma from daughter metastable  Barium)

    Gamma Sensitivity: 334 CPM per µSv/hr (3340 CPM per mR/hr) referenced  to Cs-137

    Efficiency: For 2 pi Geometry (typical Efficiencies, primary emissions  noted)

    Manual: ONYX Operation Manual

    Options: USB cable, charger and carrying case available

    Ports: Output: Stereo 3.5 mm jack sends pulses to Safecast iPhone  application

    Power: One 3.7 V Lithium Ion battery

    Size: 130 x 660 x 230 mm (5.1 x 2.6 x 0.9 inches)

    Temperature Range: -20º to +50º C , -4º to +122º F

    Timer: Can set sampling periods of 1 minute to 40 hours.

    Weight: 200 grams (7 oz) including battery

    IMI Onyx Personal  Radiation Monitor Available Accessories:



    OnyxView Software


    AC Wall Charger (USB cable not included)


    Solar Carry Bag; Charges and protects ONYX


    TRRS Cable: for data output to iOS Device


    Pelican case to waterproof and protect

    *Accessories may ship separately from our instruments

    Please contact us for availability and pricing.


    Operating Manuals for Onyx:

    bullet Quick Start Guide  
    bullet Onyx Manual
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