3nh YT4200-P1 Coating Thickness Gauge (0~1250μm)

3nh YT4200-P1 Coating Thickness Gauge (0~1250μm)

3nh YT4200-P1 Coating Thickness Gauge (0~1250μm) is a high-end, specialized measurement device featuring an integrated probe based on a magnetic substrate (Fe) platform. The product is manufactured by 3nh (China) – a well-known brand in the field of optical measurement and surface inspection equipment.

This device is designed for fast, accurate, and non-destructive measurement of non-magnetic coatings on magnetic metal substrates (such as iron and steel).

Technical Specifications:

Substrate: Fe

Structure: Integrated type

Resolution: 0.1/1μm

Measuring range: 0~1250μm

Minimum measuring area: 10×10mm

Minimum substrate thickness: Magnetic: 0.2mm

Minimum curvature: Convex radius: 5mm; Concave radius: 10mm

Display unit: μm

Power supply: 2 x No. 5 batteries (AA alkaline batteries or nickel-metal hydride rechargeable batteries)

Dimensions: 102×66×24mm

Weight: 102×66×24mm

Operating environment: 0~40ºC (10~90%RH non-condensing)

Storage environment: -10~50ºC

Package includes: 1 main unit (aluminum base), wristband, calibration board

Optional Accessories: Calibration board (12μm, 25μm)

Product Highlights

• Non-destructive Measurement: Allows rapid inspection of plating and surface paint thickness without affecting or damaging the product’s structure.
• Intuitive and Easy-to-Use Interface: Clear display screen supporting both Metric (μm) and Imperial (Mils) units. The compact and ergonomic handheld design makes it convenient for moving around workshops or field assignments.
• Flexible Calibration Modes: Supports both Zero Calibration and Multi-point Calibration using the included standard calibration foils, ensuring maximum accuracy before measuring.
• Energy Saving: Features an Auto Power Off function when not in use and a Low Battery Indicator.

Measurement Capabilities and Practical Applications

The device is specialized for measuring non-magnetic coatings, including:

• Dry paint film, clear coat, and PP/PE/PVC plastic films.
• Powder coating and ceramic/porcelain coating layers.
• Non-magnetic metal plating layers: Chrome, Copper, Zinc, Enamel, etc., on iron and steel surfaces.

Common targets and industries:

• Automotive Industry: Used by used-car inspectors, panel beaters, repair shops, and detailing centers to check original paint thickness to detect if the vehicle has been in an accident, touched up, or applied with body filler (bondo).
• Mechanical Processing & Steel Structures: Checking the thickness of hot-dip galvanization and anti-rust paint on workshop frames and pipelines.
• Home Appliance Manufacturing: Inspecting the powder coating quality on refrigerator surfaces, washing machines, and industrial machine enclosures.
• Quality Inspection Units (QC/QA): Acceptance testing of protective coatings for transport infrastructure and marine vessels.