Standard
Coating Thickness Gauge complies with international standards including ASTM B499, ASTM D1400, ISO 2178, ISO 2360, and GB/T 4956, ensuring reliable measurements for industrial and laboratory applications. Designed for non-destructive testing of non-magnetic coatings on ferromagnetic substrates (e.g., steel, iron), it meets the demands of automotive, manufacturing, and QC inspection sectors.
Product Advantages
- Zero-Point Calibration
- Simplifies setup with instant zero adjustment, eliminating baseline errors for consistent accuracy.
- Vivid IPS Display
- 1.14" full-color IPS screen with intuitive touch controls for effortless navigation, even under bright lighting.
- Curved Surface Mastery
- Measures convex radii ≥5mm and concave radii ≥10mm, ideal for pipes, automotive panels, and contoured parts.
- High-Sensitivity Probe
- Proprietary sensor technology delivers rapid response (1μm resolution) and ±(3%H+1)μm precision.
- Ultra-Portable Design
- Compact 65g build with wrist strap for single-handed operation in tight spaces or field environments.
- Extended Battery Life
- 10,000 measurements per charge (8+ hours) for uninterrupted workflows.
- Ample Data Storage
- 100-result memory with USB-C connectivity for quick data transfer to PCs/tablets.
- Dual-Unit Flexibility
- Toggle between μm and mil units for global standard compliance.
- Rugged Durability
- Operates in 0–40°C temperatures and withstands harsh industrial environments.
- Cost-Effective Precision
- Affordable entry-level pricing without compromising accuracy, backed by 3nh’s proprietary technology.
Product Features
- Measurement Principle: Magnetic induction (Fe-base) for non-destructive coating thickness analysis.
- Substrate Compatibility: Ideal for paint, powder coat, ceramic, chrome, copper, zinc, and anodized layers on iron/steel.
- Probe Design: Integrated single-positioning probe ensures stable contact on flat or curved surfaces.
- Resolution: 1μm for detecting even the thinnest coatings.
- Measurement Range: 0–1250μm (0–49.2 mil) covers most industrial coating applications.
- Accuracy: ±(3%H+1)μm (H = coating thickness) for reliable QC pass/fail decisions.
- Display: IPS full-color screen with anti-glare coating for outdoor readability.
- Connectivity: USB-C port for charging and data export.
- Battery: Rechargeable lithium battery with 10,000-scan capacity.
- Ergonomics: Compact 107×50×20mm form factor with anti-slip texture.
- Environmental Resistance: IP20 rating (non-waterproof) for dry indoor/outdoor use.
Technical Parameters
| Specification | Details |
|---|
| Model | STDYT5100 |
| Base Material | Ferromagnetic (Fe-base) |
| Probe Type | Integrated single-positioning |
| Resolution | 1μm (0.04 mil) |
| Measurement Range | 0–1250μm (0–49.2 mil) |
| Accuracy | ±(3%H + 1)μm |
| Display | 1.14" IPS full-color TFT |
| Interface | USB-C (charging/data) |
| Storage | 100 measurements |
| Battery | 10,000 scans per charge |
| Dimensions | 107 × 50 × 20mm |
| Weight | 65g (including wrist strap) |
| Operating Temp. | 0–40°C (32–104°F) |
| Storage Temp. | -10–50°C (14–122°F) |
| Min. Curvature | Convex: 5mm / Concave: 10mm |
| Min. Substrate Size | 10 × 10mm |
| Units | μm / mil (switchable) |
Accessories
- Iron Calibration Substrate
- Wrist Strap & Microfiber Cleaning Cloth
- USB-C Charging Cable
- User Manual & Calibration Certificate
- Portable Printer, 5V-2A Power Adapter, Calibration Foils, Replacement Probe Tips

Qinsun Instruments Co., LTD is a professional laboratory testing instrument manufacturer in China,Have been focusing on laboratory instrument R&D more than 30 years and have rich industry experience,Based on international testing standards,We are also the instrument supplier for BV SGS laboratory,We provide one-stop solutions for lab instruments,Free Training and Turn-Key Service,Products exported all over the world,Offer 36 month warranty and are a trustworthy partner.