Increased data confidence in slim hole applictions. Quick and simple processing for accurate survey data.  

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Downhole Navigation

Driller-Operable Geophysics

In-field Geoanalysis

Structural Geology

Drilling Optimisation

REFLEX EZ-A™ is a digital downhole survey instrument with both single and multi-shot proficiency. With an operating core grade designed specifically to survey in A core grades, the slimline 25mm barrel can be used for various slim hole applications in all-angle surveys. With an inbuilt infrared communication link, the REFLEX EZ-A™ is able to transfer vital downhole data quickly and efficiently via a handheld computer, allowing instant, comprehensive analysis.

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  • Storage
  • -20ºC to 85ºC (-4ºF to +185ºF)

solid state electronics

  • Down hole electronic recording
  • Non-volatile memory and data retention
  • Thermal modelling for accurate calibration over the entire temperature range


  • Outer diameter
  • 25.0mm (1.0”)
  • Length
  • 790mm (31.126”)
  • Weight
  • 1.7kg (1.2lbs)

optional equipment

  • 3 extension rods, each 1.5m long, 36mm O.D.
  • Landing collar (A – P sizes)
  • Pin Spear, Swivel or A rod attachment
  • Bull plug and Mule shoe
  • Pressure barrels 36 & 38mm

handheld computer


pc / laptop

  • REFLEX SPROCESS™ (Windows)
  • REFLEX AQS™ communication software.

Operating Features

  • Single and multi-shot modes
  • Inclinometer
  • Variable time delay
  • 5 to 32 sec
  • Self contained, battery powered

Azimuth (direction)

  • Range
  • 0 to 360º
  • Accuracy
  • ± 1º

Roll angle

  • Tool face gravity
  • 0 to 360º
  • Tool face magnetic
  • 0 to 360º


  • Mangetic field strength in, nanoTelsa
  • Magnetic dip, in degrees


  • 6,000psi (41.4 MPa) or 4,000 metre water pressure without pressure barrel
  • 20,000psi (137.9 MPa) or 13,800 metre water pressure with optional 36 / 38 mm pressure barrel

operating environment

  • Full accuracy
  • 0ºC to +60ºC (+32ºF to +140ºF)
  • Operating Temperature without heat shield
  • +70ºC (+158ºF) ambient temperature
  • Operating Temperature with heat shield
  • +177ºC (+350ºF) ambient temperature


Download REFLEX EZ-A™ Brochure – English