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The Professional Manufacturer & Solution Provider of Paint Thickness Tester

Yunombo delivers high-precision, reliable, and easy-to-use paint thickness testers trusted by professionals worldwide. As a leading manufacturer since 2008, we combine innovation with quality to empower automotive inspectors, body shops, and industrial users.

YNB-400 Package
YNB Device Close-up
YNB Series Display
YNB in Use
YNB-110 Model
Specification Chart

About Yunombo

Shixing Tech Limited, established in 2008, is a professional manufacturer and provider of measuring instruments based in Shenzhen, China — one of the most dynamic technology hubs in the world. Yunombo is our flagship brand dedicated to the research, development, and production of high-performance paint thickness testers and automotive inspection tools.

Our most popular model, the YNB-100, has become the best-selling paint thickness tester globally due to its precision, ease of use, and reliability. With no need for calibration and a high-resolution display of 0.05mm, it sets the standard in the industry.

At Yunombo, we are committed to continuous innovation. Our engineering team is actively designing next-generation devices with enhanced accuracy, durability, and user experience. We serve a global network of distributors and welcome partnerships to expand our reach.

Whether you're inspecting vehicle repaints, verifying industrial coatings, or ensuring quality control, Yunombo provides the tools you can trust.

Our Products

YNB-100

YNB-100

Hot Classic Model with backlight, 0.05mm resolution, easy to use, no calibration required.

  • ✔ Steel / Aluminum / Galvanized detection
  • ✔ High precision: 0.05mm resolution
  • ✔ Plug-and-play, no calibration needed
  • ✔ Ideal for car inspection & body shops
YNB-220

YNB-220 / 220B / 220U

Hot Model with LED/UV light and multi-surface detection capability.

  • ✔ Detects Steel, Aluminum, Galvanized
  • ✔ Built-in LED/UV flashlight
  • ✔ Ergonomic design for field use
  • ✔ Backlit display for low-light conditions
YNB-400

YNB-400

Advanced model with enhanced sensor technology and extended measurement range.

  • ✔ High-accuracy dual-probe system
  • ✔ Measures up to 2000μm
  • ✔ Auto-recognition of substrate type
  • ✔ Data logging and USB export
YNB-555

YNB-555

2021 New Model with tri-color backlight and advanced diagnostics.

  • ✔ Three-color backlight (red/green/blue)
  • ✔ Smart diagnostics and error alerts
  • ✔ Rechargeable battery with long life
  • ✔ Suitable for industrial and automotive use
YNB-220U

YNB-220U

Ultraviolet-enhanced version of the YNB-220 for detailed surface inspection.

  • ✔ UV light for detecting hidden repairs
  • ✔ Accurate on curved and uneven surfaces
  • ✔ Lightweight and portable
  • ✔ Auto power-off for battery saving
YNB-220B

YNB-220B

Bluetooth-enabled model for wireless data transfer and mobile integration.

  • ✔ Bluetooth 5.0 connectivity
  • ✔ Companion app for iOS/Android
  • ✔ Stores up to 1000 readings
  • ✔ Ideal for fleet inspections and reports
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YNB-220

Core model with balanced performance and affordability.

  • ✔ Reliable measurement on all common substrates
  • ✔ Clear digital display with hold function
  • ✔ Durable ABS housing
  • ✔ CE & RoHS certified
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YNB-PRO Series (Coming Soon)

Next-generation professional-grade testers with AI-assisted analysis.

  • ✔ AI-powered anomaly detection
  • ✔ Cloud sync and reporting
  • ✔ Multi-point averaging mode
  • ✔ Designed for OEMs and large-scale operations

Why Choose Yunombo?

High Accuracy

Our testers offer precision down to 0.05mm, ensuring reliable results every time.

Fast & Easy to Use

No calibration needed. Just turn on and start measuring — perfect for on-site inspections.

Multi-Substrate Detection

Accurately measures paint thickness on steel, aluminum, and galvanized surfaces.

Global Trust

Trusted by professionals in over 50 countries, with the YNB-100 being the world’s most popular model.

Innovation & R&D

Backed by a dedicated engineering team focused on developing smarter, more reliable tools.

Distributor Partnerships

We welcome global distributors and offer strong support, training, and marketing materials.

2008
Founded
50+
Countries Served
1M+
Units Sold
8
Product Models

Frequently Asked Questions

What is a paint thickness tester used for?

It measures the thickness of paint layers on vehicles and industrial surfaces to detect repaints, repairs, or coating quality.

Can Yunombo testers work on both steel and aluminum?

Yes, most models automatically detect and measure accurately on steel, aluminum, and galvanized substrates.

Do I need to calibrate the YNB-100?

No. The YNB-100 is factory-calibrated and requires no user calibration — just turn it on and use it.

Is the YNB-220U suitable for detecting hidden repairs?

Yes. The built-in UV light helps reveal mismatched paint and repaired areas not visible under normal light.

Do you offer a warranty?

Yes, all Yunombo devices come with a 1-year manufacturer warranty against defects.

How can I become a distributor?

We welcome global distributors. Please visit the official website to learn more about partnership opportunities.

Get in Touch

Have questions or interested in becoming a distributor? Reach out to us today.

Contact Information

Phone: +86-755-28447129

Email: [email protected]

Brand: Yunombo (Shixing Tech Limited)

Location: Shenzhen, China

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