AUTOOL TG501 · DUAL-PROBE FE/NFE PAINT THICKNESS ANALYZER
AUTOOL TG501 Professional Automotive Paint & Coating Thickness Gauge
Uncover hidden accident repairs, body filler, and resprayed panels on both steel and aluminum vehicles in 0.5 seconds.
- Auto Fe & NFe
- 0-1500 μm / 0.1 μm
- 80-Set Memory
Engineered for Professional Workshop Demands
The AUTOOL TG501 is built to deliver speed, accuracy, and durability in busy service bays.
Automatic Substrate Recognition (Fe & NFe Dual Probe)
Combines magnetic induction and eddy current sensors to automatically detect whether a body panel is steel (Fe) or aluminum (NFe) in half a second.
0.1 μm Resolution & ±(2%+1μm) Precision
Clearly separates factory OEM paint (80–140 μm) from secondary resprays (160–300 μm) and heavy putty repairs (300–1500 μm).
180° Flip Screen & 80-Group Data Storage
Rotate the backlit LCD 180° for upside-down measurements on lower rocker panels and roofs while automatically logging up to 80 readings.
Complete Multi-Point Calibration Kit Included
Supplied with Fe and Al zeroing substrates plus 5 precision thickness foils (50, 100, 250, 500, 1000 μm) to maintain laboratory accuracy.
STEEL & ALUMINUM BODY COMPATIBILITY
Essential for Modern Vehicles with Aluminum Hoods & Fenders
Many modern cars (BMW, Mercedes, Audi, Tesla, Land Rover) use aluminum hoods and doors. Single-mode ferrous testers fail on these panels, whereas AUTOOL TG501 switches seamlessly between Fe and NFe.
- Instant automatic switching between Ferrous (Fe) and Non-Ferrous (NFe)
- Spots aftermarket steel replacement hoods on cars that came with OEM aluminum
- Spring-loaded probe tip ensures perpendicular contact on curved panels
USED CAR INSPECTION GUIDE
Read a Vehicle's Accident History in Microns
Walk around any vehicle and take 5-point panel readings to build a complete map of its paintwork before buying.
- 80 – 150 μm: Original factory paint thickness
- 160 – 300 μm: Cosmetic respray or double clearcoat layer
- 300 – 1500 μm: Body filler (putty) and collision sheet-metal repair
ERGONOMIC & VERSATILE
Flip Screen, Triple Units (μm/mil/mm) & Auto Power-Off
Switch effortlessly between micrometers (μm), mils, and millimeters (mm), with smart 2-minute auto shutoff to preserve battery life.
- Supports Single (SNG) and Continuous (CTN) scanning modes
- High-contrast backlit LCD readable in bright sunlight or dark garages
- Pocket-sized 100g body with wrist lanyard and protective pouch
Detailed Visual & Technical Infographic Showcase
Close-up hardware details and application scenes of the AUTOOL TG501.
See It in Action
Watch the official product video demonstrating setup and real-world operation.
Technical Specifications & Hardware Parameters
Complete manufacturer-verified technical data and operating ranges.
| Brand / Model | AUTOOL TG501 Paint Thickness Gauge |
|---|---|
| Measuring Principle | Magnetic Induction (Fe) & Eddy Current (NFe) |
| Measuring Range | 0 – 1500 μm (0 – 60 mil / 0 – 1.5 mm) |
| Resolution | 0.1 μm (0–99.9 μm) / 1 μm (100+ μm) |
| Accuracy | ±(2% + 1 μm) |
| Supported Substrates | Ferrous Steel (Fe) & Non-Ferrous Aluminum/Copper (NFe) |
| Data Memory | 80 Readings Auto Storage |
|---|---|
| Display Features | Backlit LCD · 180° Screen Flip |
| Selectable Units | μm · mil · mm |
| Power Supply | 2 × 1.5V AAA Batteries (2-Min Auto Off) |
| Dimensions & Weight | 120 × 40 × 30 mm · ~100 g |
| Warranty | 1-Year Official Otoeko Warranty |
Workshop Application & Operating Guide
Recommended 4-step standard operating procedure for accurate results.
Power On in Free Air
Turn on the TG501 away from metal surfaces and ensure the vehicle panel is wiped clean.
Press Probe Vertically (90°)
Place the spring-loaded sensor flat against the paint; the screen instantly displays Fe/NFe and thickness.
Compare Against Door Jambs
Measure 5 points per exterior panel and compare against inner door pillars to establish the factory baseline.
Zero & Foil Calibration
Use the included Fe/Al plates and 5 calibration foils whenever you want to verify pinpoint accuracy.
Conventional Methods vs. Professional Diagnostics
How precision engineering eliminates guesswork and comebacks.
Conventional / Basic Methods
- Magnetic pens miss thin resprays and cannot test aluminum panels
- Fe-only meters fail on modern aluminum hoods and fenders
- Fixed screens are difficult to read upside-down on lower rockers
- Uncalibrated gauges drift over time and give false readings
With AUTOOL TG501
- 0.1 μm digital precision catches even thin clearcoat blends
- Auto Fe/NFe dual sensor measures both steel and aluminum
- 180° flip backlit screen reads comfortably from any angle
- Includes full Fe/Al zero plates and 5 calibration shims
Package Contents — Ready for the Workshop
Complete factory kit inspected prior to dispatch.
- 1 × AUTOOL TG501 Digital Automotive Paint Thickness Gauge
- 2 × Zero Substrates (Fe + Al) & 5 × Calibration Foils
- 1 × Wrist Strap, Protective Case & User Manual
1 Year Official Otoeko Warranty
The AUTOOL TG501 is backed by a 1 Year official Otoeko warranty against manufacturing defects, with full technical support.
Frequently Asked Questions
Key technical questions from technicians and workshops about the AUTOOL TG501.
Does AUTOOL TG501 measure paint on aluminum car panels?
Yes, it automatically detects non-ferrous (NFe) aluminum panels and measures coating thickness accurately.
How do I interpret the micron readings on a car?
Typically 80–150 μm indicates original factory paint; 160–300 μm indicates a respray; and 300+ μm indicates body filler from collision repair.
Can it measure paint on plastic bumpers?
No, electromagnetic coating gauges require a conductive metal backing (steel or aluminum) and do not measure plastic or fiberglass.
How do I flip the screen 180°?
Press the flip shortcut key to invert the display when measuring roofs or lower rocker panels.
Are calibration plates included?
Yes, both Ferrous (Fe) and Aluminum (Al) base plates plus 5 calibration foils are included.
What warranty is provided?
1-year official Otoeko distributor warranty.