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Giatec Surf™ Surface Resistivity

Giatec Surf™ Surface Resistivity

Product Options

  Part Number & Name Price QTY
Giatec SURF™  with 4" x 8" (100 x 200mm) Sample HolderHG-9037.3F
Giatec SURF™ with 4" x 8" (100 x 200mm) Sample Holder
Giatec SURF™  Testing Device OnlyHG-9030.3F
Giatec SURF™ Testing Device Only
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Giatec Surf™ Surface Resistivity

Supports the following standards: ASHTO TP-95

Surf™ is a laboratory non-destructive test device for rapid, easy and accurate measurement of the surface electrical resistivity of concrete based on the four-probe (Wenner-Array) technique according to AASHTO TP 95-11, and pending ASTM specifications. Surf™ has a unique and customized setup, which enables the measurement of electrical resistivity with high accuracy by reducing the duration of the test and minimizing ambient effects.

The Surf™ provides a test cradle for 4"x 8" and 6" x 12" cylinders, which provides four (4) 4-sensor arrays positioned at 90° intervals around the cradle. Surf™'s patented technology automatically takes measurements at each of the sensor points around the cylinder and then repeats the process for all 8 measurements in less than 15 seconds. The included PC software takes this information and generates the reports required by the standards.


  • Performance-based, quality control testing
  • Estimation of chloride diffusion coefficient
  • Service-life design of concrete structures
  • Remaining life estimation of structures
  • Crack detection in under load concrete
  • Monitoring the setting time of fresh concrete


  • Patented technology
  • Fully compliant with both AASHTO TP95 and the upcoming ASTM standard
  • Fast measurement (8 measurements < 15s)
  • Four-channel surface resistivity meter
  • Variable frequency (13 - 100 Hz)
  • Limits moisture loss
  • Automatic report generation with PC software
  • Fresh concrete testing/crack detection


  • Measurement Channels - 4
  • Measurement Display - Yes
  • LCD Display Area - 65 x 33 mm
  • Dimensions of Device - 200 x 160 x 70 mm
  • Software - Surf™ Data Monitor

The Giatec Surf™ kit includes" the Surf™ unit, 100 × 200mm (4" x 8") sample holder, power adaptor, USB cable, communication software, user manual, and conductive gel.


  Part Number & Name Price QTY
Surf™ Verification Kit, High and Low range
Conductive Gel - Low Viscosity, 250ml
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Replacement Parts

  Part Number & Name Price QTY
Surf™ Sample Holder, 4" x 8" (100 x 200mm) Dia.
Surf™ Test Cable, Four-point with clip.
Surf™ Contact Sponge Set, 16 pcs.
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Manuals, Data Sheets & Safety Data Sheets
Giatec Surf (Data Sheet PDF)


Related Items
  • Giatec RCON2™ Concrete Resistivity


    Giatec RCON2™ Concrete Resistivity

    Concrete Resistivity Testing Device can replace the standard Rapid Chloride Permeability Test

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    Resipod Resistivity Meter

    Fastest and most accurate concrete surface resistivity meter available

  • Impact Echo Concrete Test System


    Impact Echo Concrete Test System

    The Impact Echo Concrete Test system is used in determining the depth of surface-opening cracks.

  • Linear Traverse Machine


    Linear Traverse Machine

    The Linear Traverse Machine is used to facilitate the counting of microscopic voids in concrete


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