Automatic substrate recognition
Switches between magnetic and eddy-current methods for compatible metal substrates.
DR-A5 · blue
Automotive paint inspection
DONGRU DR-A5 Automotive Paint Thickness Gauge
Blue or yellow. Measure paint on steel and aluminum vehicle panels with automatic Fe/NFe recognition. Store 2000 readings in 10 groups and recharge through Type-C.
0–2000 μmMeasuring range
Fe / NFeAutomatic switching
- 2000 readings; 10 groups × 200
- probe: Ruby
- protection rating: IP55
Product code DR-CT-DR-A5 · For professional vehicle inspection
Made for the inspection workflow
Measure. Save.
Review your readings.
Automatic substrate recognition, on-device records and rechargeable power.
Reading memory
2000 readings; 10 groups × 200; Minimum / maximum / average
Probe: Ruby · Protection: IP55
Probe: Ruby. Housing protection: IP55. Rechargeable lithium battery for portable use.
In practice
Where the DR-A5 is used
Read coating thickness panel by panel on painted steel and aluminium bodywork, then compare the numbers and keep them with the job. A reading is evidence for an inspection, not a verdict on its own.
01
Used-vehicle assessment
Painted steel + aluminium
Work around the body in a fixed order and compare readings between metal panels. Automatic Fe/NFe switching covers both substrates without changing probes.
A single high reading does not, by itself, establish accident repair.
02
Bodywork & refinishing
Before + after
Take readings before and after refinishing so the coating build is documented with the job, rather than judged by appearance alone.
Near edges and curved sections, observe the stated minimum substrate thickness and curvature.
03
Inspection records
On-device memory
2000
readings · 10 groups
Minimum, maximum and average values are reviewed directly on the instrument.
Readings stay on the device; PC export is not claimed.
Auto Fe/NFe switching · Ruby probe · Type-C rechargeableDR-A5 · Coating thickness gauge
Where it stopsSuitable painted metal panels only. Not for coatings on plastic or carbon-fibre parts, and not for metal wall thickness.
Technical reference
The numbers
behind the measurement.
Clear specifications, separated from marketing copy.
One product. One shared specification record.
0–2000 μm
Measuring range
For paint thickness on compatible metal substrates. Verify suitability for your sample, geometry and inspection conditions.
Measurement
DR-A5 measurement specifications
- Measuring range
- 0–2000 μm (≈78.7 mil)
- Measurement method
- Magnetic induction / eddy current; automatic Fe/NFe recognition
- Compatible substrates
- Steel / aluminum with compatible coatings
- Accuracy
- ±(2%H + 1.5 μm)
- Display resolution
- 0.1 μm / 1 μm
- Minimum substrate thickness
- 0.3 mm
- Minimum curvature radius
- Convex: 5 mm; concave: 25 mm
- Measurement modes
- Single / continuous
- Calibration
- Zero / two-point calibration
Instrument & environment
DR-A5 body and operating specifications
- Model
- DR-A5
- Color options
- Blue / yellow
- Power supply
- Built-in 3.7 V, 1200 mAh rechargeable lithium battery; Type-C
- Reading memory
- 2000 readings; 10 groups × 200
- On-device statistics
- Minimum / maximum / average
- Units
- μm / mil
- Probe / protection
- Ruby probe / IP55
- Body dimensions / weight
- 107 × 62 × 25 mm / 72 g
- Operating environment
- −15 to 50 °C; 20–90% RH; no strong magnetic fields
Body dimensions and instrument weight are shown here, not shipping-package dimensions or gross weight.
DR-A5
Included kit
- Power supplyBuilt-in 3.7 V, 1200 mAh rechargeable lithium battery; Type-C
- Supplied documentsFactory test report, English manual and product quality certificate
- Calibration foils / reference bases2 calibration foils; 1 Fe base; 1 NFe base
- Other included accessoriesCarrying case, pouch, wrist strap, protective sleeve and Type-C cable; 1 each
Operation and settings are described in the supplied English manual.
Find the right fit
Tell us what
you need to inspect.
Share your substrate, expected coating thickness and data-recording needs to discuss the DR-A5.
Discuss your measurement task
Please include your substrate, expected thickness and data-recording requirements.
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