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NexDiag NexPTG Buying & Setup Guide

Detailing Shed | NexPTG Paint Thickness Gauges

NexPTG Buying & Setup Guide

Everything you need to set up your gauge, get the most out of the app, and pick the right model for how you actually work.

App Setup Instructions

  1. Install two AA batteries into your NexPTG gauge.
  2. Download the free NexPTG app from the App Store, Google Play, or Huawei AppGallery (links below).
  3. Turn Bluetooth on for your phone or tablet, then open the NexPTG app.
  4. Follow the on-screen pairing prompt, the app will automatically search for and connect to your gauge.
  5. Start measuring, readings, substrate detection and interpretation all appear live in the app as you go.

No gauge on hand yet, or just want to see how it works first? Open the app and start Demo Mode from the main screen to simulate readings without a device connected.

Minimum requirements: Android 5.0+ with Bluetooth Low Energy, or iOS 11+ on iPhone 6s or later. PRO Carbon models also pair with a Wear OS or WatchOS smartwatch.

What Can A Paint Thickness Gauge Tell You?

A paint thickness gauge does much more than measure paint depth. It can help you:

  • Detect previous accident repairs
  • Identify repainted panels
  • Find body filler hidden beneath paint
  • Compare paint thickness across the entire vehicle
  • Check whether paint is safe to machine polish
  • Reduce the risk of removing excessive clear coat
  • Support vehicle inspections and condition reports
  • Make more informed paint correction decisions

Many repaint repairs look completely normal to the eye. A paint thickness gauge helps uncover what cannot be seen visually, giving detailers, buyers and inspectors more confidence before making decisions.

Not Sure Which Model To Choose?

🏆

Want the best value?

Choose the Professional Tool Case.

Shop Professional

Want the most popular model?

Choose the PRO Carbon.

Shop PRO Carbon

Need certified documentation for reports, inspections or insurance work?

Choose the PRO Carbon + Certificate.

Shop PRO Carbon + Certificate

Compare The NexPTG Range

Spec Professional
Tool Case🏆 Best Value
PRO Carbon⭐ Most Popular PRO Carbon
+ Certificate✅ Professional Choice
Measurement range 0–2500 µm 0–3000 µm
Measurement memory 4,000 readings 8,000 readings
Bluetooth connectivity Bluetooth 4.0 LE Bluetooth 4.0 LE
App support iOS & Android iOS, Android & smartwatch
Data logging & reports Yes Yes, 100+ report bodies
Accuracy features Extended SAPL Extended SAPL ver. 2 + certified
Calibration certificate Not included Included, accredited
VIN reader / voice control No Yes
Battery life Up to 100h, 2x AA Up to 100h, 2x AA
Warranty 24 months 36 months

Which Device Should I Choose?

🏆

Best Value

Professional Tool Case

The best balance of performance and affordability. Full curve-capable measurement, solid memory and reporting, without paying for extras you might not use.

Shop Professional
🚗

Best for Enthusiasts

PRO Carbon

Reliable results with straightforward operation, plus the extended range and app extras (VIN reader, voice control, smartwatch) if you want more from the experience.

Shop PRO Carbon
🔬

Best for Professionals

PRO Carbon + Certificate

For workshops, detailers and appraisers who need advanced features and certified, defensible accuracy behind every reading and every report.

Shop PRO Carbon + Certificate

Trusted By

Professional Detailers

Paint Correction Specialists

Vehicle Inspectors

Car Dealerships

Used Vehicle Buyers

Panel Shops

Insurance Assessors

Vehicle Appraisers

Whether you're buying, selling, inspecting or correcting paint, NexPTG gauges provide accurate measurement data that helps remove guesswork.

Still Unsure?

Use our side-by-side comparison above, or contact the Detailing Shed team for personalised advice on choosing the right NexPTG gauge for your needs.