Paint Thickness Gauge CM-224 Auto Digital Coating Thickness Meter for Cars and Automotive Inspection, Fe / Al / Fe+Zn Detection, 0.1 m Resolution, Factory Calibrated, Large Backlit LCD

DESIGNED SPECIFICALLY FOR AUTOMOTIVE INSPECTION: Accurately evaluates paint thickness, repainting, and filler presence on metal car panels. Ideal for used car buyers, vehicle appraisers, body shops, and detailing professionals.
DUAL MEASURING TECHNOLOGY FOR METAL SURFACES: Uses magnetic induction for ferrous metals and eddy current technology for non-ferrous metals, ensuring stable and repeatable measurements on steel, aluminum, and copper substrates.
SINGLE & CONTINUOUS MEASUREMENT MODES: Supports single-point (SNG) mode for precise spot checks and continuous (CON) mode for rapid scanning of large vehicle panels.
SPECIFICATIONS for Paint Thickness Gauge CM-224Auto
Supported base materials Ferrous metals (steel, iron), non-ferrous metals (aluminum, copper), galvanized steel (Fe+Zn)
Substrate detection Automatic recognition of Fe / NFe / Fe+Zn substrates
Measuring principle Magnetic induction (Fe, Fe+Zn) and eddy current technology (Al, Cu)
Measurement range 01500 m ( 059.1 mils)
Resolution 0.1 m ( 0.01 mils)
Accuracy ±(3% + 2 m) / ±(3% + 0.08 mils)
Measurement modes Single measurement (SNG) and continuous measurement (CON)
Measurement speed Less than 1 second per reading
Fe+Zn detection capability Detects galvanized layer 15 m; detection depth up to 200 m
Calibration methods Zero calibration and multi-point calibration using calibration foils
Units m / mils
Display Large LCD with backlight and battery level indicator
Auto power off Yes, after 5 minutes of inactivity
Operating temperature 20 °C to +40 °C (4 °F to 104 °F)
Operating humidity Up to 90% RH
Power supply 2 × 1.5 V AAA batteries
Can this gauge measure plastic or carbon fiber parts?
No. CM-224 Auto is a paint thickness gauge for metal substrates only: steel/iron (Fe) and aluminum/copper (NFe). Plastic bumpers, carbon fiber, and composites cannot be measured correctly because they dont support magnetic/eddy current testing.
What does Fe+Zn detection mean?
Fe+Zn detects galvanized steel on ferrous panels. During used car inspection, compare symmetrical parts (left/right fender, doors, quarter panels). They should show the same material type. Different results may indicate a replaced or repaired panel.
Does the gauge require calibration before use?
For automotive paint inspection, no calibration is required. Factory calibrated and ready after installing batteries. Detailed calibration may be needed only for high-precision industrial coating control (e. g., parts painting on a conveyor line).
Who is this gauge for?
CM-224 Auto is ideal for used car buyers, vehicle appraisers, body shops, and detailing professionals. It helps quickly check paint thickness on metal panels to spot repainting, repairs, and uneven coating during inspections.
Is it suitable for outdoor use?
Yes. CM-224 Auto operates from 20 °C to +40 °C (4 °F to 104 °F), suitable for garages and outdoor car checks. It features temperature compensation for more stable readings during temperature changes. Keep the probe and surface clean. **