EXTECH CG204 Coating Thickness Gauge for Ferrous and Non-Ferrous Metals

Measuring coating thickness on metal substrates can be challenging without the right tool. The EXTECH CG204 coating thickness gauge provides accurate, non-destructive measurements on both ferrous and non-ferrous metals, making it ideal for quality control in automotive, painting, and manufacturing environments.

Who is it for

Professionals who need to verify paint, powder coating, or plating thickness on steel, iron, aluminum, copper, or brass. Suitable for inspectors, painters, and maintenance personnel.

Main features

• Dual measurement principle: magnetic induction for ferrous metals and eddy current for non-ferrous metals
• Wide measuring range: 0 to 1500 µm (0 to 59.0 mils)
• High accuracy: ±(3% + 1 µm) or ±(3% + 0.039 mils)
• Selectable resolution: 0.1 µm up to 100 µm, 1 µm above 100 µm
• Backlit LCD display for clear readings in any lighting
• Data memory for 2000 readings (400 manual, 1600 automatic)
• USB connectivity with included PC software for data analysis
• Measurement modes: single, continuous, and difference
• Calibration options: zero, 2-point, and basic
• User-settable high/low alarm limits
• Auto power off with user-selectable timeout
• Powered by 2 AAA batteries

Specifications

• Measurement principle: Magnetic induction (ferrous) / Eddy current (non-ferrous)
• Substrate compatibility: Ferrous metals (iron, steel), non-ferrous metals (aluminum, copper, brass)
• Measurement range: 0 to 1500 µm (0 to 59.0 mils)
• Accuracy: ±(3% + 1 µm) or ±(3% + 0.039 mils)
• Resolution: 0.1 µm (0-100 µm), 1 µm (>100 µm)
• Display: Backlit LCD
• Data memory: 2000 readings (400 manual, 1600 auto)
• Connectivity: USB
• PC software: Included
• Measurement modes: Single, continuous, difference
• Calibration methods: Zero, 2-point, basic
• Alarm functions: High/low user-settable
• Power source: 2 x AAA batteries
• Operating temperature: 0 to 50°C (32 to 122°F)
• Minimum measurement area: 6 mm diameter
• Minimum substrate thickness: 0.3 mm
• Auto power off: Yes (user selectable)

Tips

For best accuracy, calibrate the gauge on the uncoated substrate before measuring. Ensure the measurement area is clean and flat. Use the continuous mode for scanning large surfaces.