- ONYX is a next generation radiation detector, born from the international response to help communities affected by the Fukushima Daiichi reactor meltdowns. Lead designer Bunnie Huang worked with Safecast, IMI and an international team to make it compatible with the Good Design Award Winning Safecast ecosystem, which has mapped and published over 60 Million radiation data readings since March 11, 2011. Onyx can be used as a stand alone pocketable instrument, or it can connect to the internet and share data. IMI has contributed design expertise, technology and backs the instrument with its standard industry best 2 year (1 year on GM sensor) warranty. Onyx is produced at Medcom HQ in Sonoma County CA.
- 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 100,000 ::: 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
- 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: 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