Extech Coating Thickness Tester – CG204

SKU: CG204
Product Weight 1.50 Pounds
This coating thickness tester is designed to measure on both ferrous and non-ferrous surfaces. Using magnetic induction and eddy current measurement methods for highly accurate reads.
Sales price $259.99

Extech Coating Thickness Tester – CG204

Automatic recognition for ferrous and non-ferrous substratesCG204data-s


  • Magnetic induction for ferrous substrates
  • Eddy current measurement for non-ferrous substrates
  • Two measuring modes (Single and Continuous) and working modes (Direct and Group)
  • Memory stores 400 readings: 80 direct and 320 group
  • User adjustable high/low alarms, min/max/average, one or two point calibration
  • USB interface includes software
  • Comes complete with:
    • Two AAA batteries
    • USB cable
    • Software
    • Calibration iron
    • Calibration aluminum
    • Reference films
    • Carrying case
  • 1 year warranty

The coating thickness tester is designed to test the coating thickness on metals with a non-intrusive, non-abrasive method. Using both a magnetic induction and an eddy current measurement method to test coatings on ferrous and non-ferrous metals. Simply make contact with the surface to be tested and the coating thickness meter provides a reading.

With two different measurement modes (single and continuous) for spot checking or testing a wider area. This meter includes a USB cable and software to analyze and organize the data collected. The CG204 Coating Thickness Tester User Manual is attached to this page to answer any additional questions.


  • Working Principle: Magnetic Induction, Eddy Current
  • Measuring Range: 0 to 1250μm 0 to 49mils
  • Basic Accuracy: ±3%
  • Resolution: 0.1μm (0.004mils)
  • Minimum Curvature Radius:
    • Ferrous: 1.5mm (59.06mils)
    • Non-Ferrous: 3mm (118.1mils)
  • Minimum Diameter:
    • Ferrous: 7mm (275.6mils)
    • Non Ferrous: 5mm (196.9mils)
  • Minimum Thickness:
    • Ferrous: 0.5mm (19.69mils)
    • Non-Ferrous: 0.3mm (11.81mils)
  • Dimensions: 4.7 x 2.4 x 1.25" (120 x 62 x 32mm)
  • Weight: 6.17oz (175g)

Unit Ship Weight: 1.5 lbs



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