Extech Coating Thicknrss Tester

Extech CG204 Coating and Paint Thickness Tester Details

Extech’s CG204 is designed for quickly evaluating the level of coating currently applied to an application. It’s ideally suited for testing the thickness of paint on cars and is suitable for use on both ferrous and non-ferrous substrates.

This tester uses magnetic induction for ferrous substrates and eddy current measurement for non-ferrous substrates.

The Extech CG204 has the generous capacity to store up to 400 readings. The coating thickness tester also features user-programmable min/max/average with high/low sounding alarms, and with one or two point calibration. It’s also equipped with a convenient USB interface, along with included software which makes makes analyzing data and downloading it from the CG240 easy.


Extech CG204 Coating Thickness Tester Key Features

  • Automatic substrate recognition
  • Magnetic induction for ferrous substrates
  • Eddy current measurement for non-ferrous substrates
  • Easy-to use menu system
  • Two measuring modes: Single and Continuous
  • Two working modes: Direct and Group
  • Memory stores 400 readings: 80 Direct and 320 Group
  • User-programmable high/low alarms
  • Min/Max/Average, one or two point calibration

Full List of Products Included

  • Extech CG204 Coating Thickness Tester
  • Two AAA Batteries
  • USB Cable
  • Software
  • Calibration Iron
  • Calibration Aluminium
  • Precision Standards
  • Pouch Case

Technical Specs

Technical Specifications

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


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