Spectrometers & Scintillometers

Gamma Surveyor Vario   SGR
Scintillation Gamma Radiameter


Gamma Surveyor Vario

  • 2048-channel geophysical gamma-ray spectrometer for field exploration, borehole logging, carborne surveys and laboratory use

  • K, U, Th assay, dose rate and search modes

  • Manual or continuous measurements with built-in or external GPS

  • Exchangeable probes with BGO and NaI(Tl) detectors

  • Vertical or horizontal instrument assembly

  • Attachable lead collimator for logging of slim layers

  • Precise spectrum stabilization using natural isotopes or artificial gamma source

  • 10 ROIs, isotope library, allows user calibration if required

  • Rugged design, submersible probe to 100 m

  • Rechargeable Li-Ion cells (for 24 hours) or 6 AA cells, 12 V car battery, AC/DC adapter

  • Easy control system (internet upgrade) with joy-stick, graphical display (colour or LCD) with backlight, acoustic pitch response, microphone and large memory

  • Data download via USB port or flash disk, data processing and spectrum view support

  • Bluetooth communication with external GPS and earphones

The Gamma Vario's easily operated control unit with compact, attachable wifi probe allows you to create a cost effective spectrometer system with your required accuracy and speed of measurement in mind.

The instrument works with either natural or artificial isotope spectrum stabilization, which is useful especially for quick and reliable measurement at very low gamma activities.


Spectral measurements of K, U, Th concentrations and natural gamma dose rate, with identification of radiation sources for mineral and raw material (uranium) prospecting, environmental monitoring, geological mapping, laboratory assays, industrial and health care purposes.

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SGR Scintillation Gamma Radiameter


Fast and sensitive indication of gamma-ray sources

 Applications include:

uranium ore prospecting

search for hidden artificial emitters

industrial and health purposes.

 The SGR is a light, ruggedized and easily operated instrument for field and industrial use. This unit is equipped with a loud acoustic output (pitch response), carrying belt and power supply from standard disposable or rechargeable cells. The SGR is watertight and resistant to mechanical shocks. The SGR does not sotre data or log GPS data, but is excellent when you simply want to locate a radioactive source for later follow up / assay.

Technical specifications

  • Detector: NaI(Tl), dia 51 x length 51 mm (6 cu in)
  • Sampling: 0.2 s, 0.5 s, 1.0 s, 2.0 s
  • Measuring range: 10 nGy/h, to 100 Gy/h
  • Pulse rate: up to 250000 cps
  • Energy sensitivity: from 50 keV
  • Alarm threshold: 100, 200, 600, 2000 nGy/h or switched off
  • Alarm range: 300 to 6000 Hz (more than 80 dB at 3000 Hz)
  • Display: LCD, backlight
  • Power supply: 3 pcs of C cells (single use or rechargeable) for 3 5 days work
  • Low power indication: acoustic and displayed
  • Size & weight: 100x100x200 mm, 1.6 kg
  • Ambient temperature: -20 to +60 C

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 Ph: +27-(0)11-467-3371

Mobile: 082 89 2 9771