NEW! Onyx Radiation Detector


  • Onyx Radiation Detector
  • ONYX Radiation Detector for nuclear risks

Compact, advanced technologies allow this powerful radiation detector to fit in the palm of your hand! The Onyx Radiation Detector detects alpha, beta, and gamma radiation with the same sensitivity as larger devices. This radiation detector can also work in conjunction with its very own smart phone app, so you can share your data on your social network!

SKU: 610708893875 Category:


ONYX Radiation Detector

Born from the multinational response to the Fukushima nuclear radiation disaster and employing design and manufacturing expertise from around the globe comes a revolutionary new radiation detector.

ONYX features a modern, streamlined look and the use of advanced technologies, making it a one-of-a-kind 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 many larger radiation detectors on the market. ONYX is optimized for surface contamination measurements through use of its 2 in. pancake Geiger Mueller tube.

The six button touch sensitive keypad allows 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.

Data are easy to read in a variety of formats (milliroentgens 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 through its micro-USB port.  Twitter data are transferred using QR code displayed on the OLED in combination with a smart phone with a QR Code scanner.


Please use the below Apps to keep your Onyx firmware up to date, to set time and date, to access your data, to continuously monitor radiation levels, and more.

Chrome App: IMI Gateway for Chrome Browser

Android App: IMI Gateway for Android



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, µR/hr: .000 to 10,000, 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 4 pi at contact

Beta C-14 (49 keV avg. 156 keV max.): 5.3% Bi-210 (390 keV avg. 1.2 MeV max.): 32% Sr-90 (546 keV and 2.3 MeV): 38% P-32 (693 keV avg. 1.7 MeV max.): 33%

Alpha Am-241 (5.5 MeV): 18%

I-125:  Smallest detectable level for I-125 is .02 mCi at contact

Manual: ONYX Operation Manual

Options: USB cable, charger and carrying case available

Ports: Output: Stereo 3.5 mm jack sends pulses to headset or external data collection devices

Power: One 3.7 V Lithium Ion battery

Size: 13 x 6.6 x 2.3 cm (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

Specifications Card

Quick Start Guide


There are no reviews yet.

Be the first to review “NEW! Onyx Radiation Detector”

NEW! Onyx Radiation Detector

Need more info? Contact us via form below! Required fields are marked with *