RadEye GX survey meter for external GM detectors
Thermo Fisher Scientific

RadEye GX Survey Meter

Compact multi-purpose survey meter for external Geiger-Mueller detectors, measuring count rate, surface contamination and dose rate.

The RadEye GX is part of the RadEye X Series, together with the RadEye SX for scintillation probes and the RadEye PX for proportional detectors. The GX is the version for Geiger-Mueller detectors and measures count rate, surface contamination and dose rate with the connected probe.

The display and alarm LED remain visible while the instrument is worn in its transparent case. Settings and data analysis are handled by optional Windows-based PC software via serial, USB or Bluetooth connection.

  • Accepts a wide range of GM detectors
  • Probe library for up to 16 detector types
  • Background subtraction in count rate and contamination modes
  • Stores the last 1500 values and logs the last 250 alarms, error messages and configuration changes
  • Weighs only 160 g with rubber protection

No prices online – you will receive a quotation with price and delivery time. Need accessories? Mention them in your request.

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Technical data

Measured quantitiesCount rate (cps, cpm), surface contamination (Bq, dps, dpm, Bq/cm²), dose rate (R/h, Sv/h, rem/h) – individual probe calibration required
ProbesExternal GM detectors, MHV connector
Overrange indicationStarting at 10,000 cps by default
High voltage range350 V to 1100 V with output impedance 1 MΩ
Probe library16 detectors with high voltage, calibration factor, dead time correction, overload threshold, detector area and timeout for detector failure
Audible alarm intensity80 dB at a distance of 30 cm
Averaging filtersAdvanced Digital Filter (ADF) or digital RC filter with time constant 1 s…180 s
Internal memoryLast 1500 values (default interval 120 s); logbook with 250 entries
Power2 × AAA (alkaline or rechargeable); optional powered desktop station
CommunicationInfrared; optional IR-to-USB, IR-to-serial and Bluetooth
Size110 × 67 × 62 mm
WeightAround 160 g

Source: Thermo Fisher Scientific, RadEye X Series product page (4250692) and RadEye selection guide (2012). Full specifications are available in the documents.