FNIRSI® CTG-20 Car Paint Coating Thickness Gauge

The FNIRSI® CTG-20 Car Paint Coating Thickness Gauge is a compact digital measuring instrument designed for fast and non-destructive measurement of coating thickness on metal surfaces. It is particularly useful for automotive inspection, allowing users to evaluate paint and coating thickness when checking vehicles for repainting, bodywork, or surface repairs.

The CTG-20 provides a 0–1400 μm measurement range with a 0.1 μm resolution and an accuracy of ±3% + 2 μm, making it suitable for detailed coating thickness measurements. The device automatically identifies the substrate type and supports measurements of non-magnetic coatings on magnetic materials as well as coatings on non-magnetic metal substrates.

Its built-in calibration functions include zero-point calibration and multi-point calibration, helping users maintain accurate measurements for different testing conditions. The device also supports both μm and mil measurement units, providing flexibility for different measurement standards and applications.

The CTG-20 features a compact 115 × 48 × 18 mm body and weighs approximately 83 g, making it easy to carry during vehicle inspections and field measurements. It includes a 600mAh rechargeable lithium battery, while the rotatable display improves viewing convenience when measuring surfaces from different positions. Data storage and putty powder testing are also supported.

The FNIRSI CTG-20 is suitable for used-car inspection, automotive body repair, paint quality assessment, metal coating inspection, manufacturing quality control, and other applications where coating thickness needs to be measured without damaging the surface. Its compact design and straightforward operation make it practical for both automotive professionals and technicians who require portable coating measurement equipment.

Features

• Measurement range from 0 to 1400 μm

• 0.1 μm resolution for detailed measurements

• Accuracy of ±3% + 2 μm

• Automatic substrate material identification

• Supports zero-point and multi-point calibration

• Measures in μm and mil units

• Supports data storage

• Putty powder testing function

• Rotatable display for convenient viewing

• Compact and lightweight design

• Rechargeable 600mAh lithium battery

• Non-destructive coating thickness measurement

Specifications

• Brand: FNIRSI

• Model: CTG-20

• Product Type: Coating Thickness Gauge

• Measurement Range: 0–1400 μm

• Accuracy: ±3% + 2 μm

• Resolution: 0.1 μm

• Measurement Units: μm / mil

• Calibration: Zero-point calibration, multi-point calibration

• Minimum Convex Curvature Radius: 5 mm

• Minimum Concave Curvature Radius: 25 mm

• Minimum Measurement Area Diameter: 20 mm

• Battery: 600mAh rechargeable lithium battery

• Dimensions: 115 × 48 × 18 mm

• Weight: Approximately 83 g

• Working Temperature: -10°C to +50°C

• Working Humidity: 20–90% RH

• Data Storage: Supported

• Putty Powder Test: Supported

• Rotatable Screen: Supported

• Automatic Power Off: Supported

Applications

• Used-car inspection

• Automotive paint thickness measurement

• Detection of repaired or repainted vehicle panels

• Automotive bodywork inspection

• Paint and coating quality control

• Metal surface coating inspection

• Industrial manufacturing quality control

• Metal finishing inspection

• Automotive repair workshops

• Professional vehicle assessment

Package Includes

• 1 × FNIRSI CTG-20 Coating Thickness Gauge

• 1 × Calibration Foil Set

• 1 × Carrying Case

• 1 × USB Charging Cable

• 1 × User Manual