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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.

    onyxback.jpgDespite 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.onyxdisplay.jpg

    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:

    wallcharger.jpg     carcharger.jpg     solarcharger.jpg     iphonedatacable.jpg


    • "IMI Gateway" Multi-Platform software - Free Download
    • A/C Wall Charger (USB cable not included) - $9
    • Barrel Adapter for Car Lighter - $9
    • Solar Carry Bag to charge and protect ONYX - Amp 4W 'Orange' Color Panel - $99
    • TRRS Cable: for data output to iOS Device - $10
    • Pelican Case to waterproof and protect - coming soon

    *Accessories may ship separately from our instruments

    Please contact us for availability and pricing.

    Operating Manuals for Onyx:

    Quick Start Guide  
    Onyx Manual
  • Product Reviews


    Write A Review

    1. Nice Sensor

      A well packaged sensor. Easy to setup and interface to software applications. on Feb 22nd 2021

    2. ONYX

      Thanks for wonderful service, helped me out with payment from Hong Kong and excellent delivery from other side of the world.
      Quality product, made in America, does exactly as advertised.
      Very happy customer thanks so much.
      on Nov 22nd 2017

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